Q: What are the prime factors of the number 151,040,450?

 A: 2, 5, 11, 101, 2719

Why are those the prime factors of the number 151,040,450?

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 151,040,450

151,040,450
Factor Arrows
275,520,225
Factor Arrows
515,104,045
Factor Arrows
53,020,809
Factor Arrows
11274,619
Factor Arrows
1012,719

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, 11, 101, 2719

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 101 x 2,719 = 151,040,450

This can also be written as 21 x 52 x 111 x 1011 x 2,7191 = 151,040,450

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


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