Q: What are the prime factors of the number 120,101,120?

 A: 2, 5, 101, 929

Why are those the prime factors of the number 120,101,120?

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 120,101,120

120,101,120
Factor Arrows
260,050,560
Factor Arrows
230,025,280
Factor Arrows
215,012,640
Factor Arrows
27,506,320
Factor Arrows
23,753,160
Factor Arrows
21,876,580
Factor Arrows
2938,290
Factor Arrows
2469,145
Factor Arrows
593,829
Factor Arrows
101929

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, 5, 101, 929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 101 x 929 = 120,101,120

This can also be written as 28 x 51 x 1011 x 9291 = 120,101,120

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 120,101,120:


Ask a Question