Q: What are the prime factors of the number 654,032,064?

 A: 2, 3, 7, 43, 11317

Why are those the prime factors of the number 654,032,064?

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 654,032,064

654,032,064
Factor Arrows
2327,016,032
Factor Arrows
2163,508,016
Factor Arrows
281,754,008
Factor Arrows
240,877,004
Factor Arrows
220,438,502
Factor Arrows
210,219,251
Factor Arrows
33,406,417
Factor Arrows
7486,631
Factor Arrows
4311,317

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, 7, 43, 11317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 7 x 43 x 11,317 = 654,032,064

This can also be written as 26 x 31 x 71 x 431 x 11,3171 = 654,032,064

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


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