361
A Go board has 361 intersections — 19 by 19.
Where 361 fits
Why 361 is special
Go's rules fit on a card and its game tree is vastly larger than chess's, which is why computers beat the world chess champion in 1997 and did not manage Go until 2016. The gap of nineteen years is entirely a consequence of that board size.
361 is part of
Factors & digit properties
- Divisors (3)
- 1, 19, 361
- Prime factorisation
- 19^2
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 361
- Binary
- 101101001
- Octal
- 551
- Hexadecimal
- 169
- Roman numeral
- CCCLXI
- Scientific notation
- 3.610 × 10^2
Other mathematical patterns
- Deficient number
- Powerful number
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
361 intersections on a Go board against 64 squares on a chessboard. The difference in game-tree size is why computers mastered chess in 1997 and Go only in 2016.
View 64 →Other connections
- contrasts with64
why?
Strength 0.50, confidence "high".
Sport
A Go board has 361 intersections against a chessboard's 64 squares, and the resulting game tree is vastly larger. That gap is why a computer beat the world chess champion in 1997 and did not beat a top Go professional until 2016.
DocumentedSport
Common questions
Is 361 a prime number?
No, 361 is not prime.
What are the factors of 361?
The factors of 361 are 1, 19, 361.
What is 361 in Roman numerals?
361 in Roman numerals is CCCLXI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026