Q: What are the prime factors of the number 340,424,140?

 A: 2, 5, 7, 19, 127979

Why are those the prime factors of the number 340,424,140?

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 340,424,140

340,424,140
Factor Arrows
2170,212,070
Factor Arrows
285,106,035
Factor Arrows
517,021,207
Factor Arrows
72,431,601
Factor Arrows
19127,979

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, 7, 19, 127979

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 19 x 127,979 = 340,424,140

This can also be written as 22 x 51 x 71 x 191 x 127,9791 = 340,424,140

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 340,424,140:


Ask a Question