Q: What are the prime factors of the number 40,565,031?

 A: 3, 13, 23, 41, 1103

Why are those the prime factors of the number 40,565,031?

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 40,565,031

40,565,031
Factor Arrows
313,521,677
Factor Arrows
131,040,129
Factor Arrows
2345,223
Factor Arrows
411,103

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:

3, 13, 23, 41, 1103

We can check our work by multiplying all of the prime factors together: 3 x 13 x 23 x 41 x 1,103 = 40,565,031

This can also be written as 31 x 131 x 231 x 411 x 1,1031 = 40,565,031

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


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