Q: What are the prime factors of the number 771,326,240?

 A: 2, 5, 167, 28867

Why are those the prime factors of the number 771,326,240?

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 771,326,240

771,326,240
Factor Arrows
2385,663,120
Factor Arrows
2192,831,560
Factor Arrows
296,415,780
Factor Arrows
248,207,890
Factor Arrows
224,103,945
Factor Arrows
54,820,789
Factor Arrows
16728,867

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, 5, 167, 28867

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 167 x 28,867 = 771,326,240

This can also be written as 25 x 51 x 1671 x 28,8671 = 771,326,240

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 771,326,240:


Ask a Question