Q: What are the prime factors of the number 132,303,440?

 A: 2, 5, 419, 3947

Why are those the prime factors of the number 132,303,440?

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 132,303,440

132,303,440
Factor Arrows
266,151,720
Factor Arrows
233,075,860
Factor Arrows
216,537,930
Factor Arrows
28,268,965
Factor Arrows
51,653,793
Factor Arrows
4193,947

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, 419, 3947

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 419 x 3,947 = 132,303,440

This can also be written as 24 x 51 x 4191 x 3,9471 = 132,303,440

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


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