Q: What are the prime factors of the number 67,122,120?

 A: 2, 3, 5, 13, 17, 2531

Why are those the prime factors of the number 67,122,120?

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 67,122,120

67,122,120
Factor Arrows
233,561,060
Factor Arrows
216,780,530
Factor Arrows
28,390,265
Factor Arrows
32,796,755
Factor Arrows
5559,351
Factor Arrows
1343,027
Factor Arrows
172,531

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, 13, 17, 2531

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 13 x 17 x 2,531 = 67,122,120

This can also be written as 23 x 31 x 51 x 131 x 171 x 2,5311 = 67,122,120

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


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