Q: What are the prime factors of the number 422,604,666?

 A: 2, 3, 11, 17, 125551

Why are those the prime factors of the number 422,604,666?

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 422,604,666

422,604,666
Factor Arrows
2211,302,333
Factor Arrows
370,434,111
Factor Arrows
323,478,037
Factor Arrows
112,134,367
Factor Arrows
17125,551

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, 11, 17, 125551

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 17 x 125,551 = 422,604,666

This can also be written as 21 x 32 x 111 x 171 x 125,5511 = 422,604,666

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


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