Q: What are the prime factors of the number 132,321,020?

 A: 2, 5, 13, 31, 16417

Why are those the prime factors of the number 132,321,020?

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 132,321,020

132,321,020
Factor Arrows
266,160,510
Factor Arrows
233,080,255
Factor Arrows
56,616,051
Factor Arrows
13508,927
Factor Arrows
3116,417

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, 5, 13, 31, 16417

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 31 x 16,417 = 132,321,020

This can also be written as 22 x 51 x 131 x 311 x 16,4171 = 132,321,020

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


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