Q: What are the prime factors of the number 145,132?

 A: 2, 13, 2791

Why are those the prime factors of the number 145,132?

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 145,132

145,132
Factor Arrows
272,566
Factor Arrows
236,283
Factor Arrows
132,791

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, 13, 2791

We can check our work by multiplying all of the prime factors together: 2 x 2 x 13 x 2,791 = 145,132

This can also be written as 22 x 131 x 2,7911 = 145,132

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


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