Q: What are the prime factors of the number 172,466,040?

 A: 2, 3, 5, 19, 67, 1129

Why are those the prime factors of the number 172,466,040?

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 172,466,040

172,466,040
Factor Arrows
286,233,020
Factor Arrows
243,116,510
Factor Arrows
221,558,255
Factor Arrows
37,186,085
Factor Arrows
51,437,217
Factor Arrows
1975,643
Factor Arrows
671,129

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, 19, 67, 1129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 19 x 67 x 1,129 = 172,466,040

This can also be written as 23 x 31 x 51 x 191 x 671 x 1,1291 = 172,466,040

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


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