Q: What are the prime factors of the number 622,205,220?

 A: 2, 3, 5, 7, 13, 113957

Why are those the prime factors of the number 622,205,220?

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 622,205,220

622,205,220
Factor Arrows
2311,102,610
Factor Arrows
2155,551,305
Factor Arrows
351,850,435
Factor Arrows
510,370,087
Factor Arrows
71,481,441
Factor Arrows
13113,957

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, 5, 7, 13, 113957

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 13 x 113,957 = 622,205,220

This can also be written as 22 x 31 x 51 x 71 x 131 x 113,9571 = 622,205,220

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


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