Q: What are the prime factors of the number 402,622,535?

 A: 5, 7, 139, 82759

Why are those the prime factors of the number 402,622,535?

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 402,622,535

402,622,535
Factor Arrows
580,524,507
Factor Arrows
711,503,501
Factor Arrows
13982,759

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:

5, 7, 139, 82759

We can check our work by multiplying all of the prime factors together: 5 x 7 x 139 x 82,759 = 402,622,535

This can also be written as 51 x 71 x 1391 x 82,7591 = 402,622,535

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


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