What is the prime factorization of 25?

25 is divisible by 5:

25 ÷ 5 = 5

5 is a prime number.

See Prime numbers 1 through 20.

Therefore, the prime factorization of 25 is

25 = 5 * 5

The prime factorization of 25 using exponents

25 = 5^{2}

So, the prime factors of 25 are

5, 5

23 is a prime number.

Therefore, we cannot find the prime factorization of 23.