Q: What are the prime factors of the number 267,373,620?

 A: 2, 3, 5, 17, 23, 29, 131

Why are those the prime factors of the number 267,373,620?

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 267,373,620

267,373,620
Factor Arrows
2133,686,810
Factor Arrows
266,843,405
Factor Arrows
322,281,135
Factor Arrows
37,427,045
Factor Arrows
51,485,409
Factor Arrows
1787,377
Factor Arrows
233,799
Factor Arrows
29131

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, 23, 29, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 17 x 23 x 29 x 131 = 267,373,620

This can also be written as 22 x 32 x 51 x 171 x 231 x 291 x 1311 = 267,373,620

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


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