Q: What are the prime factors of the number 766,416,525?

 A: 3, 5, 7, 17, 79, 1087

Why are those the prime factors of the number 766,416,525?

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 766,416,525

766,416,525
Factor Arrows
3255,472,175
Factor Arrows
551,094,435
Factor Arrows
510,218,887
Factor Arrows
71,459,841
Factor Arrows
1785,873
Factor Arrows
791,087

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, 7, 17, 79, 1087

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 7 x 17 x 79 x 1,087 = 766,416,525

This can also be written as 31 x 52 x 71 x 171 x 791 x 1,0871 = 766,416,525

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


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