What is the prime factorization of 140?

140 is divisible by 10:

140 ÷ 10 = 14

See Divisibility criteria for 10.

Neither 10 nor 14 are prime numbers.

See Prime numbers 1 through 20.

The prime factorization of 10 is

10 = 2 * 5

The prime factorization of 14 is

14 = 2 * 7

Therefore, the prime factorization of 140 is

140 =

2 * 2 * 5 * 7

2 * 2 * 5 * 7

The prime factorization of 140 using exponents

140 = 2^{2} * 5 * 7

So, the prime factors of 140 are

2, 2, 5, 7