Q: What are the prime factors of the number 18,782,082?

 A: 2, 3, 11, 29, 3271

Why are those the prime factors of the number 18,782,082?

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 18,782,082

18,782,082
Factor Arrows
29,391,041
Factor Arrows
33,130,347
Factor Arrows
31,043,449
Factor Arrows
1194,859
Factor Arrows
293,271

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, 11, 29, 3271

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 29 x 3,271 = 18,782,082

This can also be written as 21 x 32 x 111 x 291 x 3,2711 = 18,782,082

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


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