Q: What are the prime factors of the number 664,746,650?

 A: 2, 5, 101, 139, 947

Why are those the prime factors of the number 664,746,650?

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 664,746,650

664,746,650
Factor Arrows
2332,373,325
Factor Arrows
566,474,665
Factor Arrows
513,294,933
Factor Arrows
101131,633
Factor Arrows
139947

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, 5, 101, 139, 947

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 101 x 139 x 947 = 664,746,650

This can also be written as 21 x 52 x 1011 x 1391 x 9471 = 664,746,650

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


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