Q: What are the prime factors of the number 786,880,140?

 A: 2, 3, 5, 23, 73, 107

Why are those the prime factors of the number 786,880,140?

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 786,880,140

786,880,140
Factor Arrows
2393,440,070
Factor Arrows
2196,720,035
Factor Arrows
365,573,345
Factor Arrows
513,114,669
Factor Arrows
23570,203
Factor Arrows
737,811
Factor Arrows
73107

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, 5, 23, 73, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 23 x 73 x 73 x 107 = 786,880,140

This can also be written as 22 x 31 x 51 x 231 x 732 x 1071 = 786,880,140

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 786,880,140:


Ask a Question