Q: What are the prime factors of the number 121,632,644?

 A: 2, 7, 4344023

Why are those the prime factors of the number 121,632,644?

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 121,632,644

121,632,644
Factor Arrows
260,816,322
Factor Arrows
230,408,161
Factor Arrows
74,344,023

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, 4344023

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 4,344,023 = 121,632,644

This can also be written as 22 x 71 x 4,344,0231 = 121,632,644

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


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