Q: What are the prime factors of the number 21,740,037?

 A: 3, 11, 23, 28643

Why are those the prime factors of the number 21,740,037?

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 21,740,037

21,740,037
Factor Arrows
37,246,679
Factor Arrows
11658,789
Factor Arrows
2328,643

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, 11, 23, 28643

We can check our work by multiplying all of the prime factors together: 3 x 11 x 23 x 28,643 = 21,740,037

This can also be written as 31 x 111 x 231 x 28,6431 = 21,740,037

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


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