Q: What are the prime factors of the number 121,015,432?

 A: 2, 15126929

Why are those the prime factors of the number 121,015,432?

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 121,015,432

121,015,432
Factor Arrows
260,507,716
Factor Arrows
230,253,858
Factor Arrows
215,126,929

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, 15126929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 15,126,929 = 121,015,432

This can also be written as 23 x 15,126,9291 = 121,015,432

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


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