Q: What are the prime factors of the number 765,316,650?

 A: 2, 3, 5, 7, 728873

Why are those the prime factors of the number 765,316,650?

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 765,316,650

765,316,650
Factor Arrows
2382,658,325
Factor Arrows
3127,552,775
Factor Arrows
525,510,555
Factor Arrows
55,102,111
Factor Arrows
7728,873

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, 7, 728873

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 728,873 = 765,316,650

This can also be written as 21 x 31 x 52 x 71 x 728,8731 = 765,316,650

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


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