Q: What are the prime factors of the number 343,421,130?

 A: 2, 3, 5, 13, 647, 1361

Why are those the prime factors of the number 343,421,130?

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 343,421,130

343,421,130
Factor Arrows
2171,710,565
Factor Arrows
357,236,855
Factor Arrows
511,447,371
Factor Arrows
13880,567
Factor Arrows
6471,361

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, 13, 647, 1361

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 13 x 647 x 1,361 = 343,421,130

This can also be written as 21 x 31 x 51 x 131 x 6471 x 1,3611 = 343,421,130

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 343,421,130:


Ask a Question