Q: What are the prime factors of the number 18,418,776?

 A: 2, 3, 73, 10513

Why are those the prime factors of the number 18,418,776?

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 18,418,776

18,418,776
Factor Arrows
29,209,388
Factor Arrows
24,604,694
Factor Arrows
22,302,347
Factor Arrows
3767,449
Factor Arrows
7310,513

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, 73, 10513

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 73 x 10,513 = 18,418,776

This can also be written as 23 x 31 x 731 x 10,5131 = 18,418,776

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


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