Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in May 2019.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
94 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
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Who runs it and what they're paid
7 people listed on the 990; $74K paid to officers and key staff.
Lioubov Malkina’s $40K as Lead Teacher is at the 31st percentile of top reported officer pay among 1613 $100K–1M education nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 4 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Luba Malkina | — | — | $44,321 | $46,339 | $40,868 | $34,784 |
| Anna Burago | $24,030 | $33,930 | $33,840 | $40,020 | $32,463 | $39,585 |
| Lioubov Malkina | $39,938 | $39,871 | — | — | — | — |
| Andrei Burago | $15,620 | $17,430 | — | — | — | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2Yes
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Inspires students with advanced math and science beyond school, making complex ideas accessible and preparing them for future careers.
Questions for Prime Factor
Your first name shows with your question. Prime Factor answers here, for everyone.
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Our Mathematics and Computer Science program aims at drawing kids to mathematics and programming, introducing them to the wonders of beautiful mathematical theories, preparing them for mathematical contests, and encouraging them to undertake future careers linked with mathematics and science, whether as mathematicians, mathematics…
Logic Land Math Festival is an event for an entire family that brings together kids, parents, and math enthusiasts for a fun and interactive exploration of recreational mathematics. We invite all young students who like mathematics and share a passion for logic games, puzzles, unusual and tricky questions, and hands-on math activities to…
Prime Factor organizes and hosts several mathematical and STEM Tournaments and Contests. We do Math Kangaroo USA Contest, UW Math Hour Olympiad, Bebras Computational Thinking Contest, and others.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2020 990, line by line.
Download 990
| Line | Start FY20 | End FY20 |
|---|---|---|
| Cash and savingsLn 1–2 | $38K | $79K |
| InvestmentsLn 11–13 | $0 | $0 |
| Land, buildings, equipmentLn 10c | $10K | $11K |
| Total assetsLn 16 | $48K | $89K |
| LiabilitiesLn 26 | $0 | $0 |
| Net assetsLn 32 | $48K | $89K |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Pay of current officers, directors and key staffLn 5 | $74K | $60K | $15K | $0 |
| Pay of disqualified personsLn 6 | $0 | $0 | $0 | $0 |
| Other salaries and wagesLn 7 | $0 | $0 | $0 | $0 |
| Pension plan contributionsLn 8 | $0 | $0 | $0 | $0 |
| Other employee benefitsLn 9 | $0 | $0 | $0 | $0 |
| Payroll taxesLn 10 | $0 | $0 | $0 | $0 |
| Management feesLn 11a | $0 | $0 | $0 | $0 |
| Legal feesLn 11b | $0 | $0 | $0 | $0 |
| Accounting feesLn 11c | $0 | $0 | $0 | $0 |
| Lobbying feesLn 11d | $0 | $0 | $0 | $0 |
| Professional fundraising feesLn 11e | $0 | $0 | ||
| Investment management feesLn 11f | $0 | $0 | $0 | $0 |
| Other fees for servicesLn 11g | $125K | $122K | $3K | $0 |
| Advertising and promotionLn 12 | $4K | $4K | $0 | $0 |
| Office expensesLn 13 | $55K | $55K | $0 | $0 |
| Information technologyLn 14 | $3K | $3K | $0 | $0 |
| RoyaltiesLn 15 | $0 | $0 | $0 | $0 |
| OccupancyLn 16 | $0 | $0 | $0 | $0 |
| TravelLn 17 | $0 | $0 | $0 | $0 |
| Travel and entertainment for public officialsLn 18 | $0 | $0 | $0 | $0 |
| Conferences, conventions and meetingsLn 19 | $1K | $1K | $104 | $0 |
| InterestLn 20 | $0 | $0 | $0 | $0 |
| Payments to affiliatesLn 21 | $0 | $0 | $0 | $0 |
| Depreciation, depletion and amortizationLn 22 | $8K | $8K | $0 | $0 |
| InsuranceLn 23 | $0 | $0 | $0 | $0 |
| Other expenses (24a–d)Ln 24 | $7K | $7K | $100 | $0 |
| All other expensesLn 24e | $379 | $379 | $0 | $0 |
| Total functional expensesLn 25 | $278K | $260K | $18K | $0 |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $326K | $310K | $17K | $124K | 990 PDF |
| FY2024 | $345K | $364K | −$19K | $107K | 990 PDF |
| FY2023 | $312K | $313K | −$788 | $104K | 990 PDF |
| FY2022 | $322K | $304K | $18K | $105K | 990 PDF |
| FY2021 | $270K | $270K | $337 | $90K | 990 PDF |
| FY2020 Viewing | $319K | $278K | $41K | $89K | 990 PDF |
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Schedules filed Part IV
See the full FY2020 990 (6 parts)
Part I · Summary $319,006 revenue, 12 lines filed
Part VI · Governance 3 of 7 board members independent, 3 to look at
Part VIII · Statement of revenue $319,006 across 14 lines filed
Part IX · Statement of functional expenses $277,746 across 27 lines filed
Part X · Balance sheet $89,452 assets, 24 lines filed
Part XI · Reconciliation of net assets $89,452 net assets at year end
Form 990 e-file (XML) FY2020 from the IRS · Classification, formation year and address from the IRS Business Master File
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