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The 152 attached to Sergey Brin’s name has no test behind it. What is on record is a mathematics degree taken at nineteen, a national research fellowship, and a Stanford doctorate he started and never finished.
This range is inferred from an academic record, not measured. It is also worth saying that a degree at nineteen is partly a fact about schooling and family — his father taught mathematics at the same university — and not purely a fact about the person.
Set the claim aside for a moment. If someone genuinely scored in this range, here is what that would represent.
Average is 100 by construction, and about two-thirds of people fall between 85 and 115. Take the test to place your own score on this scale.
| Score range | Classification | Share of people | What it indicates |
|---|---|---|---|
| 85 – 114 | Average | ~68% | The range most people fall into. |
| 115 – 129 | Above average | ~13.6% | Roughly one person in seven. |
| 130 – 144 | Gifted | ~2% | The threshold most high-IQ societies use. |
| Above 144 | Highly gifted | ~0.1% | Figures above this range are extrapolated from the curve rather than measured. |
Percentages are approximate and describe a normal distribution. The same number means different things on tests with different standard deviations.
Thirty questions gives you a measured position on this exact scale — your score, your percentile and the ability breakdown behind it.
Find out in 30 minutes →Sergey Brin was born in Moscow in 1973 and came to the United States with his family in 1979, when he was six. His father Michael Brin became a mathematics professor at the University of Maryland; his mother Eugenia worked as a researcher at NASA’s Goddard Space Flight Center.
He took his bachelor’s degree at Maryland in 1993 and went to Stanford on an NSF fellowship, where he met Larry Page in 1995. The search engine they built as a graduate project — originally called BackRub — became Google in September 1998.
He served as president of Alphabet until 2019 and remains a controlling shareholder. The later public work has run to other things: Parkinson’s genetics research funding, following a personal genetic finding he disclosed himself, and airships.
By Elora Mercer, Celebrity Research WriterFigures checked by Leon Falkner, Data & Research AnalystThe estimate above rests on this record. Every entry here is a matter of public fact, which is more than can be said for the number itself.
Following a claim back to its first appearance is the part almost nobody does — and it is what most people are actually asking.
Brin is a useful case because the documented record is genuinely strong, which means the invented number adds nothing. A mathematics and computer science degree at nineteen, an NSF fellowship, and a doctoral place at Stanford are all checkable. None of them is an IQ score, and none of them needs to be dressed as one.
The detail the listicles leave out is the one that makes him interesting: he did not finish the PhD. He and Larry Page took leave from the Stanford programme in 1998 to run Google and never went back. A profile built around a score has nowhere to put that fact. A profile built around a record does — it is the single most consequential academic decision either of them made.
The 1998 paper is the strongest evidence in the file, and it is evidence of a specific thing rather than a general one. PageRank treats the link structure of the web as a citation graph and ranks pages by a recursive measure of endorsement. That is a mathematical idea, published, reviewed, and still legible twenty-five years later.
How we read a number →The peer-reviewed paper describing PageRank, presented at the Seventh International World Wide Web Conference. The strongest single piece of documented work in the file.
A conferred degree, verifiable through the institution. His father, Michael Brin, was a member of the mathematics faculty there.
A competitive federal award. Named consistently across his biographical record as the funding that took him to Stanford.
No school, university, military or press record of a test result has surfaced, and Brin has never claimed one publicly.
Source URLs and first-appearance date pending audit.
No original could be located. The figure circulates chiefly on billionaire-IQ listicles that cite each other.
The figures that circulate for Sergey Brin, what we were able to confirm, and where the two diverge.
152 is the figure that circulates, usually inside listicles of billionaire IQs. It appears without a test name, a date or an examiner, and the same number turns up on dozens of pages that cite one another.
We could find no evidence that Sergey Brin has ever sat an IQ test, or that any result has been published. He has not claimed a score. The 152 has no traceable first appearance — it behaves like a number that was assigned to fit the biography rather than derived from anything.
A fifteen-point spread across sources that all state their figure as fact is the ordinary signature of estimation dressed up as measurement.
Want a number that does hold up? Every figure on this page is somebody’s claim. Take the 30-question test and get a percentile you can check rather than a figure you have to trust.
There is no measured score. The 152 that circulates online has no test, date or examiner behind it. Our 150–165 range is inferred from his academic and published record, not from a test.
No. He entered the Stanford computer science doctoral programme in 1993 on an NSF fellowship and took leave in 1998 to run Google. He never returned to complete it.
Nineteen. He took his BS in mathematics and computer science at the University of Maryland in 1993.
There is no record of membership, and he has never claimed any tested score.
With Larry Page he developed PageRank, a method of ranking web pages by treating links as citations. It was published in 1998 and became the basis of Google search.
They sit close together, which is appropriate — the documented records are near-identical, down to the same unfinished doctorate. Neither has a test result.
You can find out in about fifteen minutes. The IQ Metrics assessment is 30 questions, scored on the same 100-mean scale used throughout this page, so your result and the estimate above are at least expressed in the same units — one measured, one inferred. Once you have a number, the leaderboard shows where it would sit, and how we score and norm it explains the benchmarking.
From the documented record rather than a test — the method is named above and set out in full under how we read a number. Compare it against the other business & tech profiles, starting with Steve Jobs.
Portrait © Matthew Yohe, CC BY-SA 3.0. The background-removed portrait above is a derivative work and is likewise offered under the same licence. · Portrait © Debbie Rowe / The Royal Society, CC BY-SA 3.0. The background-removed portrait above is a derivative work and is likewise offered under the same licence. · Portrait by Christopher Smith, U.S. Department of Health and Human Services — a work of the U.S. federal government, public domain. Background removed for the portrait above.
Thirty questions, scored against general-population benchmarks. Your score, your percentile, your ability breakdown and a printable IIF certificate.
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