Q: What are the prime factors of the number 765,557,745?

 A: 3, 5, 59, 67, 12911

Why are those the prime factors of the number 765,557,745?

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 765,557,745

765,557,745
Factor Arrows
3255,185,915
Factor Arrows
551,037,183
Factor Arrows
59865,037
Factor Arrows
6712,911

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:

3, 5, 59, 67, 12911

We can check our work by multiplying all of the prime factors together: 3 x 5 x 59 x 67 x 12,911 = 765,557,745

This can also be written as 31 x 51 x 591 x 671 x 12,9111 = 765,557,745

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


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