Q: What are the prime factors of the number 121,814,834?

 A: 2, 89, 191, 3583

Why are those the prime factors of the number 121,814,834?

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 121,814,834

121,814,834
Factor Arrows
260,907,417
Factor Arrows
89684,353
Factor Arrows
1913,583

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, 89, 191, 3583

We can check our work by multiplying all of the prime factors together: 2 x 89 x 191 x 3,583 = 121,814,834

This can also be written as 21 x 891 x 1911 x 3,5831 = 121,814,834

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


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