Q: What are the prime factors of the number 664,046,622?

 A: 2, 3, 17, 37, 89, 659

Why are those the prime factors of the number 664,046,622?

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 664,046,622

664,046,622
Factor Arrows
2332,023,311
Factor Arrows
3110,674,437
Factor Arrows
336,891,479
Factor Arrows
172,170,087
Factor Arrows
3758,651
Factor Arrows
89659

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, 17, 37, 89, 659

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 17 x 37 x 89 x 659 = 664,046,622

This can also be written as 21 x 32 x 171 x 371 x 891 x 6591 = 664,046,622

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


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