GCF and LCM of 6
Every pair this site works through that contains 6. 30 of them share a factor with it; 6 share nothing, which is its own kind of answer.
Shares a factor with 6
Shares nothing with 6
What 6 is made of
Every common factor 6 can share with anything comes from this list, which is why the pairs below look the way they do. 6 = 2 × 3, and that factorisation is unique — the fundamental theorem of arithmetic guarantees no other set of primes multiplies to it.
- Divisors (4)
- 1, 2, 3, 6
- As factor pairs
- 1×6, 2×3
- Prime factorisation
- 2 × 3
- Divisors excluding itself add to
- 6 — perfect, a number equal to the sum of its own divisors
Divisors come in pairs that multiply to 6, which is why there is an even number of them unless the number is a perfect square. The greatest common factor of 6 and any other number is the largest entry two lists like this one share.