Q: What are the prime factors of the number 306,225,408?

 A: 2, 3, 398731

Why are those the prime factors of the number 306,225,408?

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 306,225,408

306,225,408
Factor Arrows
2153,112,704
Factor Arrows
276,556,352
Factor Arrows
238,278,176
Factor Arrows
219,139,088
Factor Arrows
29,569,544
Factor Arrows
24,784,772
Factor Arrows
22,392,386
Factor Arrows
21,196,193
Factor Arrows
3398,731

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, 398731

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 2 x 3 x 398,731 = 306,225,408

This can also be written as 28 x 31 x 398,7311 = 306,225,408

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 306,225,408:


Ask a Question