Q: What are the prime factors of the number 68,155,750?

 A: 2, 5, 13, 67, 313

Why are those the prime factors of the number 68,155,750?

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 68,155,750

68,155,750
Factor Arrows
234,077,875
Factor Arrows
56,815,575
Factor Arrows
51,363,115
Factor Arrows
5272,623
Factor Arrows
1320,971
Factor Arrows
67313

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, 5, 13, 67, 313

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 13 x 67 x 313 = 68,155,750

This can also be written as 21 x 53 x 131 x 671 x 3131 = 68,155,750

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


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