Q: What are the prime factors of the number 635,402,432?

 A: 2, 7, 1033, 1373

Why are those the prime factors of the number 635,402,432?

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 635,402,432

635,402,432
Factor Arrows
2317,701,216
Factor Arrows
2158,850,608
Factor Arrows
279,425,304
Factor Arrows
239,712,652
Factor Arrows
219,856,326
Factor Arrows
29,928,163
Factor Arrows
71,418,309
Factor Arrows
1,0331,373

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, 1033, 1373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 1,033 x 1,373 = 635,402,432

This can also be written as 26 x 71 x 1,0331 x 1,3731 = 635,402,432

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


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