Q: What are the prime factors of the number 146,688?

 A: 2, 3, 191

Why are those the prime factors of the number 146,688?

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 146,688

146,688
Factor Arrows
273,344
Factor Arrows
236,672
Factor Arrows
218,336
Factor Arrows
29,168
Factor Arrows
24,584
Factor Arrows
22,292
Factor Arrows
21,146
Factor Arrows
2573
Factor Arrows
3191

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, 191

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 3 x 191 = 146,688

This can also be written as 28 x 31 x 1911 = 146,688

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 146,688:


Ask a Question