Q: What are the prime factors of the number 660,277,008?

 A: 2, 3, 17, 23, 1303

Why are those the prime factors of the number 660,277,008?

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 660,277,008

660,277,008
Factor Arrows
2330,138,504
Factor Arrows
2165,069,252
Factor Arrows
282,534,626
Factor Arrows
241,267,313
Factor Arrows
313,755,771
Factor Arrows
34,585,257
Factor Arrows
31,528,419
Factor Arrows
3509,473
Factor Arrows
1729,969
Factor Arrows
231,303

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, 23, 1303

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 17 x 23 x 1,303 = 660,277,008

This can also be written as 24 x 34 x 171 x 231 x 1,3031 = 660,277,008

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


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