Q: What are the prime factors of the number 305,461,422?

 A: 2, 3, 7, 43, 18793

Why are those the prime factors of the number 305,461,422?

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 305,461,422

305,461,422
Factor Arrows
2152,730,711
Factor Arrows
350,910,237
Factor Arrows
316,970,079
Factor Arrows
35,656,693
Factor Arrows
7808,099
Factor Arrows
4318,793

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, 43, 18793

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 43 x 18,793 = 305,461,422

This can also be written as 21 x 33 x 71 x 431 x 18,7931 = 305,461,422

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 305,461,422:


Ask a Question