Q: What are the prime factors of the number 72,252,224?

 A: 2, 11, 29, 3539

Why are those the prime factors of the number 72,252,224?

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 72,252,224

72,252,224
Factor Arrows
236,126,112
Factor Arrows
218,063,056
Factor Arrows
29,031,528
Factor Arrows
24,515,764
Factor Arrows
22,257,882
Factor Arrows
21,128,941
Factor Arrows
11102,631
Factor Arrows
293,539

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, 11, 29, 3539

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 11 x 29 x 3,539 = 72,252,224

This can also be written as 26 x 111 x 291 x 3,5391 = 72,252,224

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


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