Q: What are the prime factors of the number 42,775,938?

 A: 2, 3, 71, 3719

Why are those the prime factors of the number 42,775,938?

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 42,775,938

42,775,938
Factor Arrows
221,387,969
Factor Arrows
37,129,323
Factor Arrows
32,376,441
Factor Arrows
3792,147
Factor Arrows
3264,049
Factor Arrows
713,719

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, 71, 3719

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 71 x 3,719 = 42,775,938

This can also be written as 21 x 34 x 711 x 3,7191 = 42,775,938

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


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