Q: What are the prime factors of the number 3,949,560?

 A: 2, 3, 5, 23, 53

Why are those the prime factors of the number 3,949,560?

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 3,949,560

3,949,560
Factor Arrows
21,974,780
Factor Arrows
2987,390
Factor Arrows
2493,695
Factor Arrows
3164,565
Factor Arrows
354,855
Factor Arrows
318,285
Factor Arrows
36,095
Factor Arrows
51,219
Factor Arrows
2353

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, 23, 53

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 5 x 23 x 53 = 3,949,560

This can also be written as 23 x 34 x 51 x 231 x 531 = 3,949,560

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 3,949,560:


Ask a Question