Is 12 a Prime Number?
Is 12 prime?
No
12 = 2² × 3 (divisible by 2).
Why
12 is composite because it is divisible by 2 (12 = 2² × 3), so it has factors other than 1 and itself.
A prime number is a whole number greater than 1 whose only factors are 1 and itself. To check 12, test whether any prime up to √12 divides it evenly — if none do, it is prime.
Check another number
The prime factorization calculator tests any number and shows its prime factors and all divisors.
Nearby numbers
Frequently asked questions
Is 12 a prime number?+
No, 12 is composite because it is divisible by 2 (12 = 2² × 3), so it has factors other than 1 and itself.
What is 12 divisible by?+
12 is divisible by more than just 1 and itself. Its prime factorization is 12 = 2² × 3.