Q: What are the prime factors of the number 522,785,376?

 A: 2, 3, 491, 3697

Why are those the prime factors of the number 522,785,376?

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 522,785,376

522,785,376
Factor Arrows
2261,392,688
Factor Arrows
2130,696,344
Factor Arrows
265,348,172
Factor Arrows
232,674,086
Factor Arrows
216,337,043
Factor Arrows
35,445,681
Factor Arrows
31,815,227
Factor Arrows
4913,697

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, 491, 3697

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 491 x 3,697 = 522,785,376

This can also be written as 25 x 32 x 4911 x 3,6971 = 522,785,376

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


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