Q: What are the prime factors of the number 665,626,248?

 A: 2, 3, 7, 146743

Why are those the prime factors of the number 665,626,248?

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 665,626,248

665,626,248
Factor Arrows
2332,813,124
Factor Arrows
2166,406,562
Factor Arrows
283,203,281
Factor Arrows
327,734,427
Factor Arrows
39,244,809
Factor Arrows
33,081,603
Factor Arrows
31,027,201
Factor Arrows
7146,743

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, 146743

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 7 x 146,743 = 665,626,248

This can also be written as 23 x 34 x 71 x 146,7431 = 665,626,248

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 665,626,248:


Ask a Question