Q: What are the prime factors of the number 40,031,658?

 A: 2, 3, 29, 8521

Why are those the prime factors of the number 40,031,658?

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 40,031,658

40,031,658
Factor Arrows
220,015,829
Factor Arrows
36,671,943
Factor Arrows
32,223,981
Factor Arrows
3741,327
Factor Arrows
3247,109
Factor Arrows
298,521

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, 3, 29, 8521

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 29 x 8,521 = 40,031,658

This can also be written as 21 x 34 x 291 x 8,5211 = 40,031,658

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


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