Q: What are the prime factors of the number 78,004,880?

 A: 2, 5, 19, 37, 73

Why are those the prime factors of the number 78,004,880?

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 78,004,880

78,004,880
Factor Arrows
239,002,440
Factor Arrows
219,501,220
Factor Arrows
29,750,610
Factor Arrows
24,875,305
Factor Arrows
5975,061
Factor Arrows
1951,319
Factor Arrows
192,701
Factor Arrows
3773

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, 19, 37, 73

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 19 x 19 x 37 x 73 = 78,004,880

This can also be written as 24 x 51 x 192 x 371 x 731 = 78,004,880

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 78,004,880:


Ask a Question