Q: What are the prime factors of the number 18,716,716?

 A: 2, 29, 47, 3433

Why are those the prime factors of the number 18,716,716?

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 18,716,716

18,716,716
Factor Arrows
29,358,358
Factor Arrows
24,679,179
Factor Arrows
29161,351
Factor Arrows
473,433

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, 29, 47, 3433

We can check our work by multiplying all of the prime factors together: 2 x 2 x 29 x 47 x 3,433 = 18,716,716

This can also be written as 22 x 291 x 471 x 3,4331 = 18,716,716

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


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