Q: What are the prime factors of the number 42,068,096?

 A: 2, 7, 29, 1619

Why are those the prime factors of the number 42,068,096?

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 42,068,096

42,068,096
Factor Arrows
221,034,048
Factor Arrows
210,517,024
Factor Arrows
25,258,512
Factor Arrows
22,629,256
Factor Arrows
21,314,628
Factor Arrows
2657,314
Factor Arrows
2328,657
Factor Arrows
746,951
Factor Arrows
291,619

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, 7, 29, 1619

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 7 x 29 x 1,619 = 42,068,096

This can also be written as 27 x 71 x 291 x 1,6191 = 42,068,096

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


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