Q: What are the prime factors of the number 18,257,668?

 A: 2, 11, 13, 59, 541

Why are those the prime factors of the number 18,257,668?

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 18,257,668

18,257,668
Factor Arrows
29,128,834
Factor Arrows
24,564,417
Factor Arrows
11414,947
Factor Arrows
1331,919
Factor Arrows
59541

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, 11, 13, 59, 541

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 13 x 59 x 541 = 18,257,668

This can also be written as 22 x 111 x 131 x 591 x 5411 = 18,257,668

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


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