Q: What are the prime factors of the number 521,634,344?

 A: 2, 7, 11, 601, 1409

Why are those the prime factors of the number 521,634,344?

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 521,634,344

521,634,344
Factor Arrows
2260,817,172
Factor Arrows
2130,408,586
Factor Arrows
265,204,293
Factor Arrows
79,314,899
Factor Arrows
11846,809
Factor Arrows
6011,409

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, 11, 601, 1409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 601 x 1,409 = 521,634,344

This can also be written as 23 x 71 x 111 x 6011 x 1,4091 = 521,634,344

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


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