Q: What are the prime factors of the number 78,036?

 A: 2, 3, 7, 929

Why are those the prime factors of the number 78,036?

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 78,036

78,036
Factor Arrows
239,018
Factor Arrows
219,509
Factor Arrows
36,503
Factor Arrows
7929

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, 7, 929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 929 = 78,036

This can also be written as 22 x 31 x 71 x 9291 = 78,036

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


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