Q: What are the prime factors of the number 745,103,660?

 A: 2, 5, 7, 41, 271, 479

Why are those the prime factors of the number 745,103,660?

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 745,103,660

745,103,660
Factor Arrows
2372,551,830
Factor Arrows
2186,275,915
Factor Arrows
537,255,183
Factor Arrows
75,322,169
Factor Arrows
41129,809
Factor Arrows
271479

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, 5, 7, 41, 271, 479

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 41 x 271 x 479 = 745,103,660

This can also be written as 22 x 51 x 71 x 411 x 2711 x 4791 = 745,103,660

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


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