Q: What are the prime factors of the number 121,849,182?

 A: 2, 3, 7, 13, 10627

Why are those the prime factors of the number 121,849,182?

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 121,849,182

121,849,182
Factor Arrows
260,924,591
Factor Arrows
320,308,197
Factor Arrows
36,769,399
Factor Arrows
7967,057
Factor Arrows
7138,151
Factor Arrows
1310,627

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, 7, 13, 10627

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 13 x 10,627 = 121,849,182

This can also be written as 21 x 32 x 72 x 131 x 10,6271 = 121,849,182

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


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