Q: What are the prime factors of the number 35,185,020?

 A: 2, 3, 5, 13, 79, 571

Why are those the prime factors of the number 35,185,020?

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 35,185,020

35,185,020
Factor Arrows
217,592,510
Factor Arrows
28,796,255
Factor Arrows
32,932,085
Factor Arrows
5586,417
Factor Arrows
1345,109
Factor Arrows
79571

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, 5, 13, 79, 571

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 79 x 571 = 35,185,020

This can also be written as 22 x 31 x 51 x 131 x 791 x 5711 = 35,185,020

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


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