Q: What are the prime factors of the number 253,966,680?

 A: 2, 3, 5, 11, 59, 1087

Why are those the prime factors of the number 253,966,680?

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 253,966,680

253,966,680
Factor Arrows
2126,983,340
Factor Arrows
263,491,670
Factor Arrows
231,745,835
Factor Arrows
310,581,945
Factor Arrows
33,527,315
Factor Arrows
5705,463
Factor Arrows
1164,133
Factor Arrows
591,087

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, 5, 11, 59, 1087

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 11 x 59 x 1,087 = 253,966,680

This can also be written as 23 x 32 x 51 x 111 x 591 x 1,0871 = 253,966,680

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


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