Q: What are the prime factors of the number 81,430,479?

 A: 3, 13, 479, 1453

Why are those the prime factors of the number 81,430,479?

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 81,430,479

81,430,479
Factor Arrows
327,143,493
Factor Arrows
39,047,831
Factor Arrows
13695,987
Factor Arrows
4791,453

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:

3, 13, 479, 1453

We can check our work by multiplying all of the prime factors together: 3 x 3 x 13 x 479 x 1,453 = 81,430,479

This can also be written as 32 x 131 x 4791 x 1,4531 = 81,430,479

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 81,430,479:


Ask a Question