Nonprofit · EIN 27-3292905
PRIME FACTOR
Also known as PRIME FACTOR MATH CIRCLE
Tax-exempt · KIRKLAND, WA 98033
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| July 31, 2025 | 990 | $326,429 | $309,879 | $16,550 | $123,938 | $84 | $123,854 |
| July 31, 2024 | 990 | $344,699 | $363,584 | -$18,885 | $107,347 | $43 | $107,304 |
| July 31, 2023 | 990 | $311,728 | $312,516 | -$788 | $103,862 | $0 | $103,862 |
Financial details: 990 for the year ended July 31, 2025
Revenue
- Contributions, gifts and grants
- $3,432
- Program service revenue
- $317,978
- Investment income
- $1,559
- Other revenue
- $3,460
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $63,968
- Other salaries and wages
- $52,244
- Salaries, compensation and benefits (total)
- $126,337
- Professional fundraising fees
- $0
- Accounting fees
- $4,200
- Occupancy
- $76,592
- Depreciation
- $1,271
- Program services (functional)
- $272,360
- Management and general (functional)
- $37,519
Balance sheet and other
- Total assets, start of year
- $107,347
- Total assets, end of year
- $123,938
- Total liabilities, end of year
- $84
- Net assets, end of year
- $123,854
- Land, buildings and equipment
- $2,154
- Net assets without donor restrictions
- $123,854
- Gross receipts
- $326,429
- Employees
- 5
- Volunteers
- 15
- Year formed
- 2010
- State of legal domicile
- WA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended July 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LIOUBOV MALKINA | LEAD TEACHER Trustee or director, Officer | 35 | $39,938 |
| ANNA BURAGO | LEAD TEACHER Trustee or director, Officer | 35 | $24,030 |
| ANDREI BURAGO | DIRECTOR Trustee or director | 2 | $15,620 |
| ALEXANDER VASCHILLO | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI MALKIN | DIRECTOR Trustee or director | 2 | $0 |
| NELLI TKACH | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI DUBINETS | DIRECTOR Trustee or director | 0.5 | $0 |
990 for the year ended July 31, 2024: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LIOUBOV MALKINA | LEAD TEACHER Trustee or director, Officer | 35 | $39,871 |
| ANNA BURAGO | LEAD TEACHER Trustee or director, Officer | 35 | $33,930 |
| ANDREI BURAGO | DIRECTOR Trustee or director | 4.33 | $17,430 |
| ALEXANDER VASCHILLO | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI MALKIN | DIRECTOR Trustee or director | 2 | $0 |
| NELLI TKACH | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI DUBINETS | DIRECTOR Trustee or director | 0.5 | $0 |
990 for the year ended July 31, 2023: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LUBA MALKINA | LEAD TEACHER Trustee or director, Officer | 35 | $44,321 |
| ANNA BURAGO | LEAD TEACHER Trustee or director, Officer | 35 | $33,840 |
| ANDREI BURAGO | DIRECTOR Trustee or director | 2 | $0 |
| ALEXANDER VASCHILLO | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI MALKIN | DIRECTOR Trustee or director | 2 | $0 |
| NELLI TKACH | DIRECTOR Trustee or director | 0.5 | $0 |
| SERGEI DUBINETS | DIRECTOR Trustee or director | 0.5 | $0 |
Address and contacts
- Address (IRS master file)
- 6131 120TH PL NE, KIRKLAND, WA 98033-8412
- In care of
- % ANNA BURAGO
- Principal officer (990 for 2024)
- ANNA BURAGO, 6131 120TH PL NE, Kirkland, WA 98033
- Signed the 990
- ANNA BURAGO, DIRECTOR, LEAD TEACHER
- Phone
- (425) 765-4084
- Website
- WWW.PFMATHCIRCLE.ORG
- Return prepared by
- Pines FG LLC
Mission
The specific objectives and purposes of prime factor corporation are: - to foster the interest of students in math and science topics and ideas that lie beyond the boundaries of the school curriculum. - to design and develop new approaches to present advanced mathematical and scientific concepts in ways that are interesting and accessible to school-age children - to provide classes in advanced math, extracurricular math, creative thinking, and in other scientific topics for children whose needs may not be served at other educational places in the community. - cultivate a community of students and parents who advance the value of extracurricular mathematics as a tool to develop students creativity and interest in learning. - to help children prepare for careers in mathematics, science, or other highly qualified fields. - to help children become creative professionals capable of achieving the top levels in their respective fields of work and ready to apply their knowledge to serve the co
Program accomplishments
- During the 2024-25 school year, prime factor achieved several milestones as a nonprofit organization. We served over 350 students by providing year-long stem classes in mathematics and computer science. Our unique advanced classes included math circles for students in grades 2, 3-4, 4-5, 5-6, 6-7, and 8-9, as well as programming classes in Scratch, AppLab, Python, JavaScript, electrical engineering with Arduino, and Java for students in grades 3 up to upper high school. We also offered coding competition and math contest preparation classes, and organized several mathematical contests such as Math Kangaroo, Noetic Learning, AMC8 and AMC10. As a nonprofit organization, we also made a positive impact by participating in efforts to help children from the families of refugees or those facing economic hardship. We offered free and discounted enrollment in our classes, provided one-on-one tutoring for no cost. We ran a free weekly online math circle for grades 36 students in Odessa, Ukraine, throughout the 2024-25 school year. We traveled to Eugene, Oregon, to help organize the Eugene Math Festival, a free family math event open to all participants. Our teachers actively participated in preparation an organization of Math Hour Olympiad, a unique oral math competition for Middle school children, free to all participants. https://sites.math.washington.edu/~mathcircle/mathhour/olympiad.html Math Hour Olympiad is a renowned math contest organized by numerous math professionals volunteering for the event, coordinated by the Math department of the University of Washington. Overall, these achievements demonstrate Prime Factors commitment to providing high-quality STEM education and making a positive impact in our community and beyond.Expenses $272,360 · revenue $317,978
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in July, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | July 31, 2026 | December 15, 2026 | Not due yet |
| 2024 | July 31, 2025 | December 15, 2025 | 990 on file |
| 2023 | July 31, 2024 | December 16, 2024 | 990 on file |
IRS record
- EIN
- 27-3292905
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2019
- Accounting year ends
- July
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B90)
- Assets (IRS master file)
- $123,938
- Income (IRS master file)
- $326,429
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | July 2025 | $326,429 | $309,879 | $123,938 | XML |
| 990 | July 2024 | $344,699 | $363,584 | $107,347 | XML |
| 990 | July 2023 | $311,728 | $312,516 | $103,862 | XML |
| 990 | July 2022 | $322,200 | $304,203 | $104,560 | IRS |
| 990 | July 2021 | – | – | – | IRS |
| 990 | July 2020 | – | – | – | IRS |
| 990 | July 2019 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 27-3292905).
Questions about PRIME FACTOR
- What is the EIN of PRIME FACTOR?
- The employer identification number (EIN) of PRIME FACTOR is 27-3292905.
- Is PRIME FACTOR tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
- Are donations to PRIME FACTOR tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does PRIME FACTOR file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of PRIME FACTOR due?
- The return for tax year 2025 (the year ending July 31, 2026) is due December 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did PRIME FACTOR last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended July 2025.
- Who is the principal officer of PRIME FACTOR?
- The 990 for the year ended July 31, 2025 names ANNA BURAGO.
- Who are the officers and directors of PRIME FACTOR?
- The 990 for the year ended July 31, 2025 lists 7 people; 3 received compensation from the organization, the highest $39,938 (LIOUBOV MALKINA, LEAD TEACHER).
- How much revenue does PRIME FACTOR have?
- On its 990 for the year ended July 31, 2025 it reported revenue of $326,429, expenses of $309,879 and total assets of $123,938 at year end.
Other nonprofits in KIRKLAND
- EASTSIDE PREPARATORY SCHOOL EIN 37-1430960 · last filed 990 for 2025
- LISTEN AND TALK EIN 91-1728129 · last filed 990 for 2025
- NORTHWEST UNIVERSITY FOUNDATION EIN 95-2008029 · last filed 990 for 2025
- WASHINGTON STATE ASSOCIATION OF HEA D START AND ECEA PROGRAMS EIN 23-7444962 · last filed 990 for 2025
- ALLEN SCHWARTZ SCHOLARSHIP TR EIN 27-6885713 · last filed 990-PF for 2025
- IGNITE ROBOTICS EIN 87-1306813 · last filed 990 for 2024
- RISALAH SCHOOL OF EXCELLENCE EIN 93-3393099 · last filed 990 for 2025
- LAKE WASHINGTON HIGH SCHOOL BOOSTER CLUB EIN 20-3440935 · last filed 990 for 2025