Q: What are the prime factors of the number 100,786,818?

 A: 2, 3, 11, 619, 2467

Why are those the prime factors of the number 100,786,818?

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 100,786,818

100,786,818
Factor Arrows
250,393,409
Factor Arrows
316,797,803
Factor Arrows
111,527,073
Factor Arrows
6192,467

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, 619, 2467

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 619 x 2,467 = 100,786,818

This can also be written as 21 x 31 x 111 x 6191 x 2,4671 = 100,786,818

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


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