Q: What are the prime factors of the number 66,650,100?

 A: 2, 3, 5, 11, 19, 1063

Why are those the prime factors of the number 66,650,100?

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 66,650,100

66,650,100
Factor Arrows
233,325,050
Factor Arrows
216,662,525
Factor Arrows
35,554,175
Factor Arrows
51,110,835
Factor Arrows
5222,167
Factor Arrows
1120,197
Factor Arrows
191,063

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, 11, 19, 1063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 11 x 19 x 1,063 = 66,650,100

This can also be written as 22 x 31 x 52 x 111 x 191 x 1,0631 = 66,650,100

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


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