Q: What are the prime factors of the number 205,437,100?

 A: 2, 5, 11, 186761

Why are those the prime factors of the number 205,437,100?

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 205,437,100

205,437,100
Factor Arrows
2102,718,550
Factor Arrows
251,359,275
Factor Arrows
510,271,855
Factor Arrows
52,054,371
Factor Arrows
11186,761

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, 5, 11, 186761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 11 x 186,761 = 205,437,100

This can also be written as 22 x 52 x 111 x 186,7611 = 205,437,100

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


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