Q: What are the prime factors of the number 720,635,756?

 A: 2, 733, 245783

Why are those the prime factors of the number 720,635,756?

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 720,635,756

720,635,756
Factor Arrows
2360,317,878
Factor Arrows
2180,158,939
Factor Arrows
733245,783

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, 733, 245783

We can check our work by multiplying all of the prime factors together: 2 x 2 x 733 x 245,783 = 720,635,756

This can also be written as 22 x 7331 x 245,7831 = 720,635,756

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


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