Q: What are the prime factors of the number 145,992?

 A: 2, 3, 7, 11, 79

Why are those the prime factors of the number 145,992?

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 145,992

145,992
Factor Arrows
272,996
Factor Arrows
236,498
Factor Arrows
218,249
Factor Arrows
36,083
Factor Arrows
7869
Factor Arrows
1179

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, 3, 7, 11, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 11 x 79 = 145,992

This can also be written as 23 x 31 x 71 x 111 x 791 = 145,992

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 145,992:


Ask a Question