Q: What are the prime factors of the number 381,684?

 A: 2, 3, 17, 1871

Why are those the prime factors of the number 381,684?

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 381,684

381,684
Factor Arrows
2190,842
Factor Arrows
295,421
Factor Arrows
331,807
Factor Arrows
171,871

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, 17, 1871

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 17 x 1,871 = 381,684

This can also be written as 22 x 31 x 171 x 1,8711 = 381,684

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 381,684:


Ask a Question