Q: What are the prime factors of the number 663,664,356?

 A: 2, 3, 23, 34849

Why are those the prime factors of the number 663,664,356?

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 663,664,356

663,664,356
Factor Arrows
2331,832,178
Factor Arrows
2165,916,089
Factor Arrows
355,305,363
Factor Arrows
318,435,121
Factor Arrows
23801,527
Factor Arrows
2334,849

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, 23, 34849

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 23 x 23 x 34,849 = 663,664,356

This can also be written as 22 x 32 x 232 x 34,8491 = 663,664,356

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


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