How do you find the prime factorization of 20?
1 Answer
Apr 8, 2016
Explanation:
You can separate out each prime factor in turn as follows:
20 is divisible by2 (i.e. even) since its last digit is even.
So divide by
10 is divisible by2 since its last digit is even.
So divide by
5 is prime.
So we can stop and write down
20=2×2×5
This can be written as a factor tree: