Q: What are the prime factors of the number 660,551,444?

 A: 2, 7, 23, 29, 113, 313

Why are those the prime factors of the number 660,551,444?

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 660,551,444

660,551,444
Factor Arrows
2330,275,722
Factor Arrows
2165,137,861
Factor Arrows
723,591,123
Factor Arrows
231,025,701
Factor Arrows
2935,369
Factor Arrows
113313

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, 7, 23, 29, 113, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 23 x 29 x 113 x 313 = 660,551,444

This can also be written as 22 x 71 x 231 x 291 x 1131 x 3131 = 660,551,444

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


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