Q: What are the prime factors of the number 122,180,811?

 A: 3, 19, 101, 1117

Why are those the prime factors of the number 122,180,811?

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 122,180,811

122,180,811
Factor Arrows
340,726,937
Factor Arrows
192,143,523
Factor Arrows
19112,817
Factor Arrows
1011,117

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:

3, 19, 101, 1117

We can check our work by multiplying all of the prime factors together: 3 x 19 x 19 x 101 x 1,117 = 122,180,811

This can also be written as 31 x 192 x 1011 x 1,1171 = 122,180,811

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


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