Q: What are the prime factors of the number 42,044,328?

 A: 2, 3, 293, 1993

Why are those the prime factors of the number 42,044,328?

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 42,044,328

42,044,328
Factor Arrows
221,022,164
Factor Arrows
210,511,082
Factor Arrows
25,255,541
Factor Arrows
31,751,847
Factor Arrows
3583,949
Factor Arrows
2931,993

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, 293, 1993

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 293 x 1,993 = 42,044,328

This can also be written as 23 x 32 x 2931 x 1,9931 = 42,044,328

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


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