Q: What are the prime factors of the number 131,401,216?

 A: 2, 256643

Why are those the prime factors of the number 131,401,216?

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 131,401,216

131,401,216
Factor Arrows
265,700,608
Factor Arrows
232,850,304
Factor Arrows
216,425,152
Factor Arrows
28,212,576
Factor Arrows
24,106,288
Factor Arrows
22,053,144
Factor Arrows
21,026,572
Factor Arrows
2513,286
Factor Arrows
2256,643

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, 256643

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 2 x 256,643 = 131,401,216

This can also be written as 29 x 256,6431 = 131,401,216

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 131,401,216:


Ask a Question