Q: What are the prime factors of the number 121,041,664?

 A: 2, 67, 7057

Why are those the prime factors of the number 121,041,664?

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 121,041,664

121,041,664
Factor Arrows
260,520,832
Factor Arrows
230,260,416
Factor Arrows
215,130,208
Factor Arrows
27,565,104
Factor Arrows
23,782,552
Factor Arrows
21,891,276
Factor Arrows
2945,638
Factor Arrows
2472,819
Factor Arrows
677,057

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, 67, 7057

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 67 x 7,057 = 121,041,664

This can also be written as 28 x 671 x 7,0571 = 121,041,664

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 121,041,664:


Ask a Question