Q: What are the prime factors of the number 19,788,800?

 A: 2, 5, 773

Why are those the prime factors of the number 19,788,800?

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 19,788,800

19,788,800
Factor Arrows
29,894,400
Factor Arrows
24,947,200
Factor Arrows
22,473,600
Factor Arrows
21,236,800
Factor Arrows
2618,400
Factor Arrows
2309,200
Factor Arrows
2154,600
Factor Arrows
277,300
Factor Arrows
238,650
Factor Arrows
219,325
Factor Arrows
53,865
Factor Arrows
5773

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, 773

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 5 x 773 = 19,788,800

This can also be written as 210 x 52 x 7731 = 19,788,800

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 19,788,800:


Ask a Question