Q: What are the prime factors of the number 37,222,240?

 A: 2, 5, 11, 21149

Why are those the prime factors of the number 37,222,240?

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 37,222,240

37,222,240
Factor Arrows
218,611,120
Factor Arrows
29,305,560
Factor Arrows
24,652,780
Factor Arrows
22,326,390
Factor Arrows
21,163,195
Factor Arrows
5232,639
Factor Arrows
1121,149

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, 11, 21149

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 11 x 21,149 = 37,222,240

This can also be written as 25 x 51 x 111 x 21,1491 = 37,222,240

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


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