Q: What are the prime factors of the number 67,318,512?

 A: 2, 3, 29, 137, 353

Why are those the prime factors of the number 67,318,512?

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 67,318,512

67,318,512
Factor Arrows
233,659,256
Factor Arrows
216,829,628
Factor Arrows
28,414,814
Factor Arrows
24,207,407
Factor Arrows
31,402,469
Factor Arrows
2948,361
Factor Arrows
137353

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, 29, 137, 353

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 29 x 137 x 353 = 67,318,512

This can also be written as 24 x 31 x 291 x 1371 x 3531 = 67,318,512

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


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