Q: What are the prime factors of the number 41,542,720?

 A: 2, 5, 131, 991

Why are those the prime factors of the number 41,542,720?

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 41,542,720

41,542,720
Factor Arrows
220,771,360
Factor Arrows
210,385,680
Factor Arrows
25,192,840
Factor Arrows
22,596,420
Factor Arrows
21,298,210
Factor Arrows
2649,105
Factor Arrows
5129,821
Factor Arrows
131991

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, 131, 991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 131 x 991 = 41,542,720

This can also be written as 26 x 51 x 1311 x 9911 = 41,542,720

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


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