Q: What are the prime factors of the number 121,056,525?

 A: 3, 5, 19927

Why are those the prime factors of the number 121,056,525?

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 121,056,525

121,056,525
Factor Arrows
340,352,175
Factor Arrows
313,450,725
Factor Arrows
34,483,575
Factor Arrows
31,494,525
Factor Arrows
3498,175
Factor Arrows
599,635
Factor Arrows
519,927

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, 5, 19927

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 5 x 19,927 = 121,056,525

This can also be written as 35 x 52 x 19,9271 = 121,056,525

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


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