Q: What are the prime factors of the number 220,896?

 A: 2, 3, 13, 59

Why are those the prime factors of the number 220,896?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 220,896

220,896
Factor Arrows
2110,448
Factor Arrows
255,224
Factor Arrows
227,612
Factor Arrows
213,806
Factor Arrows
26,903
Factor Arrows
32,301
Factor Arrows
3767
Factor Arrows
1359

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 13, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 59 = 220,896

This can also be written as 25 x 32 x 131 x 591 = 220,896

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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