Q: What are the prime factors of the number 205,646,544?

 A: 2, 3, 881, 1621

Why are those the prime factors of the number 205,646,544?

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 205,646,544

205,646,544
Factor Arrows
2102,823,272
Factor Arrows
251,411,636
Factor Arrows
225,705,818
Factor Arrows
212,852,909
Factor Arrows
34,284,303
Factor Arrows
31,428,101
Factor Arrows
8811,621

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, 881, 1621

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 881 x 1,621 = 205,646,544

This can also be written as 24 x 32 x 8811 x 1,6211 = 205,646,544

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


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