Q: What are the prime factors of the number 251,772,664?

 A: 2, 11, 13, 29, 7589

Why are those the prime factors of the number 251,772,664?

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 251,772,664

251,772,664
Factor Arrows
2125,886,332
Factor Arrows
262,943,166
Factor Arrows
231,471,583
Factor Arrows
112,861,053
Factor Arrows
13220,081
Factor Arrows
297,589

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, 11, 13, 29, 7589

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 13 x 29 x 7,589 = 251,772,664

This can also be written as 23 x 111 x 131 x 291 x 7,5891 = 251,772,664

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


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