Q: What are the prime factors of the number 273,646,672?

 A: 2, 13, 31, 37

Why are those the prime factors of the number 273,646,672?

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 273,646,672

273,646,672
Factor Arrows
2136,823,336
Factor Arrows
268,411,668
Factor Arrows
234,205,834
Factor Arrows
217,102,917
Factor Arrows
131,315,609
Factor Arrows
3142,439
Factor Arrows
311,369
Factor Arrows
3737

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, 13, 31, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 31 x 31 x 37 x 37 = 273,646,672

This can also be written as 24 x 131 x 312 x 372 = 273,646,672

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


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