Q: What are the prime factors of the number 254,280,728?

 A: 2, 13, 1531, 1597

Why are those the prime factors of the number 254,280,728?

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 254,280,728

254,280,728
Factor Arrows
2127,140,364
Factor Arrows
263,570,182
Factor Arrows
231,785,091
Factor Arrows
132,445,007
Factor Arrows
1,5311,597

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, 13, 1531, 1597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 1,531 x 1,597 = 254,280,728

This can also be written as 23 x 131 x 1,5311 x 1,5971 = 254,280,728

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


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