Q: What are the prime factors of the number 30,763,656?

 A: 2, 3, 7, 11, 31, 179

Why are those the prime factors of the number 30,763,656?

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 30,763,656

30,763,656
Factor Arrows
215,381,828
Factor Arrows
27,690,914
Factor Arrows
23,845,457
Factor Arrows
31,281,819
Factor Arrows
3427,273
Factor Arrows
761,039
Factor Arrows
115,549
Factor Arrows
31179

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, 7, 11, 31, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 11 x 31 x 179 = 30,763,656

This can also be written as 23 x 32 x 71 x 111 x 311 x 1791 = 30,763,656

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


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