Q: What are the prime factors of the number 60,155,781?

 A: 3, 7, 229, 1787

Why are those the prime factors of the number 60,155,781?

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 60,155,781

60,155,781
Factor Arrows
320,051,927
Factor Arrows
72,864,561
Factor Arrows
7409,223
Factor Arrows
2291,787

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:

3, 7, 229, 1787

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 229 x 1,787 = 60,155,781

This can also be written as 31 x 72 x 2291 x 1,7871 = 60,155,781

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


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