Q: What are the prime factors of the number 513,312,322?

 A: 2, 19, 31, 37, 11777

Why are those the prime factors of the number 513,312,322?

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 513,312,322

513,312,322
Factor Arrows
2256,656,161
Factor Arrows
1913,508,219
Factor Arrows
31435,749
Factor Arrows
3711,777

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, 19, 31, 37, 11777

We can check our work by multiplying all of the prime factors together: 2 x 19 x 31 x 37 x 11,777 = 513,312,322

This can also be written as 21 x 191 x 311 x 371 x 11,7771 = 513,312,322

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


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