Q: What are the prime factors of the number 40,131,046?

 A: 2, 41, 61, 71, 113

Why are those the prime factors of the number 40,131,046?

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 40,131,046

40,131,046
Factor Arrows
220,065,523
Factor Arrows
41489,403
Factor Arrows
618,023
Factor Arrows
71113

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, 41, 61, 71, 113

We can check our work by multiplying all of the prime factors together: 2 x 41 x 61 x 71 x 113 = 40,131,046

This can also be written as 21 x 411 x 611 x 711 x 1131 = 40,131,046

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


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