Q: What are the prime factors of the number 274,555,440?

 A: 2, 3, 5, 17, 7477

Why are those the prime factors of the number 274,555,440?

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 274,555,440

274,555,440
Factor Arrows
2137,277,720
Factor Arrows
268,638,860
Factor Arrows
234,319,430
Factor Arrows
217,159,715
Factor Arrows
35,719,905
Factor Arrows
31,906,635
Factor Arrows
3635,545
Factor Arrows
5127,109
Factor Arrows
177,477

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, 17, 7477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 17 x 7,477 = 274,555,440

This can also be written as 24 x 33 x 51 x 171 x 7,4771 = 274,555,440

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


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