Q: What are the prime factors of the number 18,280,808?

 A: 2, 7, 13, 25111

Why are those the prime factors of the number 18,280,808?

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 18,280,808

18,280,808
Factor Arrows
29,140,404
Factor Arrows
24,570,202
Factor Arrows
22,285,101
Factor Arrows
7326,443
Factor Arrows
1325,111

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, 7, 13, 25111

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 13 x 25,111 = 18,280,808

This can also be written as 23 x 71 x 131 x 25,1111 = 18,280,808

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


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