Q: What are the prime factors of the number 124,656,220?

 A: 2, 5, 13, 47, 101

Why are those the prime factors of the number 124,656,220?

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 124,656,220

124,656,220
Factor Arrows
262,328,110
Factor Arrows
231,164,055
Factor Arrows
56,232,811
Factor Arrows
13479,447
Factor Arrows
4710,201
Factor Arrows
101101

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, 13, 47, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 47 x 101 x 101 = 124,656,220

This can also be written as 22 x 51 x 131 x 471 x 1012 = 124,656,220

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 124,656,220:


Ask a Question