Q: What are the prime factors of the number 254,255,470?

 A: 2, 5, 7, 29, 251, 499

Why are those the prime factors of the number 254,255,470?

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 254,255,470

254,255,470
Factor Arrows
2127,127,735
Factor Arrows
525,425,547
Factor Arrows
73,632,221
Factor Arrows
29125,249
Factor Arrows
251499

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, 5, 7, 29, 251, 499

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 29 x 251 x 499 = 254,255,470

This can also be written as 21 x 51 x 71 x 291 x 2511 x 4991 = 254,255,470

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


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