Q: What are the prime factors of the number 277,684,605?

 A: 3, 5, 11, 79, 263

Why are those the prime factors of the number 277,684,605?

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 277,684,605

277,684,605
Factor Arrows
392,561,535
Factor Arrows
330,853,845
Factor Arrows
310,284,615
Factor Arrows
33,428,205
Factor Arrows
31,142,735
Factor Arrows
5228,547
Factor Arrows
1120,777
Factor Arrows
79263

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, 11, 79, 263

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 11 x 79 x 263 = 277,684,605

This can also be written as 35 x 51 x 111 x 791 x 2631 = 277,684,605

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


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