Q: What are the prime factors of the number 16,878,168?

 A: 2, 3, 53, 4423

Why are those the prime factors of the number 16,878,168?

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 16,878,168

16,878,168
Factor Arrows
28,439,084
Factor Arrows
24,219,542
Factor Arrows
22,109,771
Factor Arrows
3703,257
Factor Arrows
3234,419
Factor Arrows
534,423

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, 53, 4423

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 53 x 4,423 = 16,878,168

This can also be written as 23 x 32 x 531 x 4,4231 = 16,878,168

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 16,878,168:


Ask a Question