Q: What are the prime factors of the number 811,774,288?

 A: 2, 13, 53, 73637

Why are those the prime factors of the number 811,774,288?

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 811,774,288

811,774,288
Factor Arrows
2405,887,144
Factor Arrows
2202,943,572
Factor Arrows
2101,471,786
Factor Arrows
250,735,893
Factor Arrows
133,902,761
Factor Arrows
5373,637

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, 13, 53, 73637

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 53 x 73,637 = 811,774,288

This can also be written as 24 x 131 x 531 x 73,6371 = 811,774,288

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


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