Q: What are the prime factors of the number 122,120,000?

 A: 2, 5, 43, 71

Why are those the prime factors of the number 122,120,000?

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 122,120,000

122,120,000
Factor Arrows
261,060,000
Factor Arrows
230,530,000
Factor Arrows
215,265,000
Factor Arrows
27,632,500
Factor Arrows
23,816,250
Factor Arrows
21,908,125
Factor Arrows
5381,625
Factor Arrows
576,325
Factor Arrows
515,265
Factor Arrows
53,053
Factor Arrows
4371

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, 43, 71

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 5 x 5 x 5 x 5 x 43 x 71 = 122,120,000

This can also be written as 26 x 54 x 431 x 711 = 122,120,000

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 122,120,000:


Ask a Question