What is the prime factorization of 20?

Answer 1

The prime factorization of 20 can be found by dividing it by the smallest prime numbers. Here’s how it works:

1. Divide by 2: \( 20 \div 2 = 10 \)
2. Divide 10 by 2: \( 10 \div 2 = 5 \)
3. 5 is a prime number, so we stop here.

Thus, the prime factorization of 20 is:

\[ 20 = 2^2 \times 5^1 \]

Or simply, \( 2^2 \times 5 \).