Q: What are the prime factors of the number 622,645,644?

 A: 2, 3, 59, 853, 1031

Why are those the prime factors of the number 622,645,644?

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 622,645,644

622,645,644
Factor Arrows
2311,322,822
Factor Arrows
2155,661,411
Factor Arrows
351,887,137
Factor Arrows
59879,443
Factor Arrows
8531,031

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, 59, 853, 1031

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 59 x 853 x 1,031 = 622,645,644

This can also be written as 22 x 31 x 591 x 8531 x 1,0311 = 622,645,644

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


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