Q: What are the prime factors of the number 4,736,928?

 A: 2, 3, 7, 19, 53

Why are those the prime factors of the number 4,736,928?

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 4,736,928

4,736,928
Factor Arrows
22,368,464
Factor Arrows
21,184,232
Factor Arrows
2592,116
Factor Arrows
2296,058
Factor Arrows
2148,029
Factor Arrows
349,343
Factor Arrows
77,049
Factor Arrows
71,007
Factor Arrows
1953

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, 7, 19, 53

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 7 x 7 x 19 x 53 = 4,736,928

This can also be written as 25 x 31 x 72 x 191 x 531 = 4,736,928

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 4,736,928:


Ask a Question