Q: What are the prime factors of the number 620,554,432?

 A: 2, 151, 157, 409

Why are those the prime factors of the number 620,554,432?

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 620,554,432

620,554,432
Factor Arrows
2310,277,216
Factor Arrows
2155,138,608
Factor Arrows
277,569,304
Factor Arrows
238,784,652
Factor Arrows
219,392,326
Factor Arrows
29,696,163
Factor Arrows
15164,213
Factor Arrows
157409

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, 151, 157, 409

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 151 x 157 x 409 = 620,554,432

This can also be written as 26 x 1511 x 1571 x 4091 = 620,554,432

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 620,554,432:


Ask a Question