Q: What are the prime factors of the number 68,153,040?

 A: 2, 3, 5, 103, 919

Why are those the prime factors of the number 68,153,040?

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 68,153,040

68,153,040
Factor Arrows
234,076,520
Factor Arrows
217,038,260
Factor Arrows
28,519,130
Factor Arrows
24,259,565
Factor Arrows
31,419,855
Factor Arrows
3473,285
Factor Arrows
594,657
Factor Arrows
103919

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, 103, 919

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 103 x 919 = 68,153,040

This can also be written as 24 x 32 x 51 x 1031 x 9191 = 68,153,040

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 68,153,040:


Ask a Question