Q: What are the prime factors of the number 254,312,265?

 A: 3, 5, 17, 23, 131, 331

Why are those the prime factors of the number 254,312,265?

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 254,312,265

254,312,265
Factor Arrows
384,770,755
Factor Arrows
516,954,151
Factor Arrows
17997,303
Factor Arrows
2343,361
Factor Arrows
131331

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:

3, 5, 17, 23, 131, 331

We can check our work by multiplying all of the prime factors together: 3 x 5 x 17 x 23 x 131 x 331 = 254,312,265

This can also be written as 31 x 51 x 171 x 231 x 1311 x 3311 = 254,312,265

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


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