Q: What are the prime factors of the number 172,254,528?

 A: 2, 3, 299053

Why are those the prime factors of the number 172,254,528?

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 172,254,528

172,254,528
Factor Arrows
286,127,264
Factor Arrows
243,063,632
Factor Arrows
221,531,816
Factor Arrows
210,765,908
Factor Arrows
25,382,954
Factor Arrows
22,691,477
Factor Arrows
3897,159
Factor Arrows
3299,053

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, 299053

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 299,053 = 172,254,528

This can also be written as 26 x 32 x 299,0531 = 172,254,528

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


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