Q: What are the prime factors of the number 82,755,328?

 A: 2, 29, 71, 157

Why are those the prime factors of the number 82,755,328?

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 82,755,328

82,755,328
Factor Arrows
241,377,664
Factor Arrows
220,688,832
Factor Arrows
210,344,416
Factor Arrows
25,172,208
Factor Arrows
22,586,104
Factor Arrows
21,293,052
Factor Arrows
2646,526
Factor Arrows
2323,263
Factor Arrows
2911,147
Factor Arrows
71157

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, 29, 71, 157

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 2 x 2 x 29 x 71 x 157 = 82,755,328

This can also be written as 28 x 291 x 711 x 1571 = 82,755,328

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


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