Q: What are the prime factors of the number 245,565,125?

 A: 5, 13, 349, 433

Why are those the prime factors of the number 245,565,125?

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 245,565,125

245,565,125
Factor Arrows
549,113,025
Factor Arrows
59,822,605
Factor Arrows
51,964,521
Factor Arrows
13151,117
Factor Arrows
349433

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:

5, 13, 349, 433

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 13 x 349 x 433 = 245,565,125

This can also be written as 53 x 131 x 3491 x 4331 = 245,565,125

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


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