Q: What are the prime factors of the number 313,515,426?

 A: 2, 3, 7, 1066379

Why are those the prime factors of the number 313,515,426?

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 313,515,426

313,515,426
Factor Arrows
2156,757,713
Factor Arrows
352,252,571
Factor Arrows
77,464,653
Factor Arrows
71,066,379

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, 1066379

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 1,066,379 = 313,515,426

This can also be written as 21 x 31 x 72 x 1,066,3791 = 313,515,426

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


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