Q: What are the prime factors of the number 277,043,340?

 A: 2, 3, 5, 7, 443, 1489

Why are those the prime factors of the number 277,043,340?

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 277,043,340

277,043,340
Factor Arrows
2138,521,670
Factor Arrows
269,260,835
Factor Arrows
323,086,945
Factor Arrows
54,617,389
Factor Arrows
7659,627
Factor Arrows
4431,489

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, 7, 443, 1489

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 7 x 443 x 1,489 = 277,043,340

This can also be written as 22 x 31 x 51 x 71 x 4431 x 1,4891 = 277,043,340

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


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