Q: What are the prime factors of the number 67,555,968?

 A: 2, 3, 23, 7649

Why are those the prime factors of the number 67,555,968?

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 67,555,968

67,555,968
Factor Arrows
233,777,984
Factor Arrows
216,888,992
Factor Arrows
28,444,496
Factor Arrows
24,222,248
Factor Arrows
22,111,124
Factor Arrows
21,055,562
Factor Arrows
2527,781
Factor Arrows
3175,927
Factor Arrows
237,649

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, 23, 7649

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 23 x 7,649 = 67,555,968

This can also be written as 27 x 31 x 231 x 7,6491 = 67,555,968

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


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