Q: What are the prime factors of the number 786,942?

 A: 2, 3, 13, 19, 59

Why are those the prime factors of the number 786,942?

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 786,942

786,942
Factor Arrows
2393,471
Factor Arrows
3131,157
Factor Arrows
343,719
Factor Arrows
314,573
Factor Arrows
131,121
Factor Arrows
1959

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, 13, 19, 59

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 13 x 19 x 59 = 786,942

This can also be written as 21 x 33 x 131 x 191 x 591 = 786,942

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 786,942:


Ask a Question