Q: What are the prime factors of the number 811,737,648?

 A: 2, 3, 5637067

Why are those the prime factors of the number 811,737,648?

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 811,737,648

811,737,648
Factor Arrows
2405,868,824
Factor Arrows
2202,934,412
Factor Arrows
2101,467,206
Factor Arrows
250,733,603
Factor Arrows
316,911,201
Factor Arrows
35,637,067

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, 5637067

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5,637,067 = 811,737,648

This can also be written as 24 x 32 x 5,637,0671 = 811,737,648

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


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