Q: What are the prime factors of the number 657,161,600?

 A: 2, 5, 137, 1499

Why are those the prime factors of the number 657,161,600?

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 657,161,600

657,161,600
Factor Arrows
2328,580,800
Factor Arrows
2164,290,400
Factor Arrows
282,145,200
Factor Arrows
241,072,600
Factor Arrows
220,536,300
Factor Arrows
210,268,150
Factor Arrows
25,134,075
Factor Arrows
51,026,815
Factor Arrows
5205,363
Factor Arrows
1371,499

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, 5, 137, 1499

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 5 x 5 x 137 x 1,499 = 657,161,600

This can also be written as 27 x 52 x 1371 x 1,4991 = 657,161,600

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 657,161,600:


Ask a Question