Q: What are the prime factors of the number 205,761,625?

 A: 5, 17, 37, 2617

Why are those the prime factors of the number 205,761,625?

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 205,761,625

205,761,625
Factor Arrows
541,152,325
Factor Arrows
58,230,465
Factor Arrows
51,646,093
Factor Arrows
1796,829
Factor Arrows
372,617

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, 17, 37, 2617

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 17 x 37 x 2,617 = 205,761,625

This can also be written as 53 x 171 x 371 x 2,6171 = 205,761,625

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


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