Q: What are the prime factors of the number 625,420,500?

 A: 2, 3, 5, 416947

Why are those the prime factors of the number 625,420,500?

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 625,420,500

625,420,500
Factor Arrows
2312,710,250
Factor Arrows
2156,355,125
Factor Arrows
352,118,375
Factor Arrows
510,423,675
Factor Arrows
52,084,735
Factor Arrows
5416,947

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, 416947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 5 x 416,947 = 625,420,500

This can also be written as 22 x 31 x 53 x 416,9471 = 625,420,500

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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