Q: What are the prime factors of the number 774,307,680?

 A: 2, 3, 5, 1613141

Why are those the prime factors of the number 774,307,680?

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 774,307,680

774,307,680
Factor Arrows
2387,153,840
Factor Arrows
2193,576,920
Factor Arrows
296,788,460
Factor Arrows
248,394,230
Factor Arrows
224,197,115
Factor Arrows
38,065,705
Factor Arrows
51,613,141

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, 5, 1613141

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 5 x 1,613,141 = 774,307,680

This can also be written as 25 x 31 x 51 x 1,613,1411 = 774,307,680

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 774,307,680:


Ask a Question