Q: What are the prime factors of the number 121,626,436?

 A: 2, 61, 498469

Why are those the prime factors of the number 121,626,436?

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 121,626,436

121,626,436
Factor Arrows
260,813,218
Factor Arrows
230,406,609
Factor Arrows
61498,469

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, 61, 498469

We can check our work by multiplying all of the prime factors together: 2 x 2 x 61 x 498,469 = 121,626,436

This can also be written as 22 x 611 x 498,4691 = 121,626,436

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


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