Q: What are the prime factors of the number 200,550,140?

 A: 2, 5, 7, 113, 1811

Why are those the prime factors of the number 200,550,140?

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 200,550,140

200,550,140
Factor Arrows
2100,275,070
Factor Arrows
250,137,535
Factor Arrows
510,027,507
Factor Arrows
71,432,501
Factor Arrows
7204,643
Factor Arrows
1131,811

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, 7, 113, 1811

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 7 x 113 x 1,811 = 200,550,140

This can also be written as 22 x 51 x 72 x 1131 x 1,8111 = 200,550,140

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


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