Q: What are the prime factors of the number 40,141,625?

 A: 5, 71, 4523

Why are those the prime factors of the number 40,141,625?

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 40,141,625

40,141,625
Factor Arrows
58,028,325
Factor Arrows
51,605,665
Factor Arrows
5321,133
Factor Arrows
714,523

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:

5, 71, 4523

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 71 x 4,523 = 40,141,625

This can also be written as 53 x 711 x 4,5231 = 40,141,625

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


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