Q: What are the prime factors of the number 66,436,236?

 A: 2, 3, 19, 23, 41, 103

Why are those the prime factors of the number 66,436,236?

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 66,436,236

66,436,236
Factor Arrows
233,218,118
Factor Arrows
216,609,059
Factor Arrows
35,536,353
Factor Arrows
31,845,451
Factor Arrows
1997,129
Factor Arrows
234,223
Factor Arrows
41103

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, 19, 23, 41, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 19 x 23 x 41 x 103 = 66,436,236

This can also be written as 22 x 32 x 191 x 231 x 411 x 1031 = 66,436,236

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


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