Q: What are the prime factors of the number 277,434,560?

 A: 2, 5, 13, 17, 3923

Why are those the prime factors of the number 277,434,560?

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 277,434,560

277,434,560
Factor Arrows
2138,717,280
Factor Arrows
269,358,640
Factor Arrows
234,679,320
Factor Arrows
217,339,660
Factor Arrows
28,669,830
Factor Arrows
24,334,915
Factor Arrows
5866,983
Factor Arrows
1366,691
Factor Arrows
173,923

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, 13, 17, 3923

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 13 x 17 x 3,923 = 277,434,560

This can also be written as 26 x 51 x 131 x 171 x 3,9231 = 277,434,560

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


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