Q: What are the prime factors of the number 521,214,534?

 A: 2, 3, 113, 229, 373

Why are those the prime factors of the number 521,214,534?

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 521,214,534

521,214,534
Factor Arrows
2260,607,267
Factor Arrows
386,869,089
Factor Arrows
328,956,363
Factor Arrows
39,652,121
Factor Arrows
11385,417
Factor Arrows
229373

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, 113, 229, 373

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 113 x 229 x 373 = 521,214,534

This can also be written as 21 x 33 x 1131 x 2291 x 3731 = 521,214,534

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


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