Q: What are the prime factors of the number 156,416?

 A: 2, 13, 47

Why are those the prime factors of the number 156,416?

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 156,416

156,416
Factor Arrows
278,208
Factor Arrows
239,104
Factor Arrows
219,552
Factor Arrows
29,776
Factor Arrows
24,888
Factor Arrows
22,444
Factor Arrows
21,222
Factor Arrows
2611
Factor Arrows
1347

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, 13, 47

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 13 x 47 = 156,416

This can also be written as 28 x 131 x 471 = 156,416

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 156,416:


Ask a Question