Q: What are the prime factors of the number 614,621,025?

 A: 3, 5, 19, 109, 1319

Why are those the prime factors of the number 614,621,025?

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 614,621,025

614,621,025
Factor Arrows
3204,873,675
Factor Arrows
368,291,225
Factor Arrows
513,658,245
Factor Arrows
52,731,649
Factor Arrows
19143,771
Factor Arrows
1091,319

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:

3, 5, 19, 109, 1319

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 19 x 109 x 1,319 = 614,621,025

This can also be written as 32 x 52 x 191 x 1091 x 1,3191 = 614,621,025

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


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