Q: What are the prime factors of the number 40,114,144?

 A: 2, 7, 25583

Why are those the prime factors of the number 40,114,144?

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 40,114,144

40,114,144
Factor Arrows
220,057,072
Factor Arrows
210,028,536
Factor Arrows
25,014,268
Factor Arrows
22,507,134
Factor Arrows
21,253,567
Factor Arrows
7179,081
Factor Arrows
725,583

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, 7, 25583

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 7 x 25,583 = 40,114,144

This can also be written as 25 x 72 x 25,5831 = 40,114,144

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


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