Q: What are the prime factors of the number 121,022,308?

 A: 2, 11, 571, 4817

Why are those the prime factors of the number 121,022,308?

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 121,022,308

121,022,308
Factor Arrows
260,511,154
Factor Arrows
230,255,577
Factor Arrows
112,750,507
Factor Arrows
5714,817

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, 11, 571, 4817

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 571 x 4,817 = 121,022,308

This can also be written as 22 x 111 x 5711 x 4,8171 = 121,022,308

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


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