Q: What are the prime factors of the number 581,225,736?

 A: 2, 3, 7, 13, 266129

Why are those the prime factors of the number 581,225,736?

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 581,225,736

581,225,736
Factor Arrows
2290,612,868
Factor Arrows
2145,306,434
Factor Arrows
272,653,217
Factor Arrows
324,217,739
Factor Arrows
73,459,677
Factor Arrows
13266,129

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, 7, 13, 266129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 13 x 266,129 = 581,225,736

This can also be written as 23 x 31 x 71 x 131 x 266,1291 = 581,225,736

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


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