Q: What are the prime factors of the number 531,644,246?

 A: 2, 7, 79, 557, 863

Why are those the prime factors of the number 531,644,246?

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 531,644,246

531,644,246
Factor Arrows
2265,822,123
Factor Arrows
737,974,589
Factor Arrows
79480,691
Factor Arrows
557863

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, 7, 79, 557, 863

We can check our work by multiplying all of the prime factors together: 2 x 7 x 79 x 557 x 863 = 531,644,246

This can also be written as 21 x 71 x 791 x 5571 x 8631 = 531,644,246

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


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