Q: What are the prime factors of the number 74,011,120?

 A: 2, 5, 379, 2441

Why are those the prime factors of the number 74,011,120?

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 74,011,120

74,011,120
Factor Arrows
237,005,560
Factor Arrows
218,502,780
Factor Arrows
29,251,390
Factor Arrows
24,625,695
Factor Arrows
5925,139
Factor Arrows
3792,441

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, 379, 2441

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 379 x 2,441 = 74,011,120

This can also be written as 24 x 51 x 3791 x 2,4411 = 74,011,120

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


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