Q: What are the prime factors of the number 205,750,650?

 A: 2, 3, 5, 7, 29, 233

Why are those the prime factors of the number 205,750,650?

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 205,750,650

205,750,650
Factor Arrows
2102,875,325
Factor Arrows
334,291,775
Factor Arrows
56,858,355
Factor Arrows
51,371,671
Factor Arrows
7195,953
Factor Arrows
296,757
Factor Arrows
29233

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, 7, 29, 233

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 29 x 29 x 233 = 205,750,650

This can also be written as 21 x 31 x 52 x 71 x 292 x 2331 = 205,750,650

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


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