Q: What are the prime factors of the number 162,645,747?

 A: 3, 11, 31, 37, 4297

Why are those the prime factors of the number 162,645,747?

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 162,645,747

162,645,747
Factor Arrows
354,215,249
Factor Arrows
114,928,659
Factor Arrows
31158,989
Factor Arrows
374,297

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:

3, 11, 31, 37, 4297

We can check our work by multiplying all of the prime factors together: 3 x 11 x 31 x 37 x 4,297 = 162,645,747

This can also be written as 31 x 111 x 311 x 371 x 4,2971 = 162,645,747

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 162,645,747:


Ask a Question