Q: What are the prime factors of the number 151,202,000?

 A: 2, 5, 19, 23, 173

Why are those the prime factors of the number 151,202,000?

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 151,202,000

151,202,000
Factor Arrows
275,601,000
Factor Arrows
237,800,500
Factor Arrows
218,900,250
Factor Arrows
29,450,125
Factor Arrows
51,890,025
Factor Arrows
5378,005
Factor Arrows
575,601
Factor Arrows
193,979
Factor Arrows
23173

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, 19, 23, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 5 x 19 x 23 x 173 = 151,202,000

This can also be written as 24 x 53 x 191 x 231 x 1731 = 151,202,000

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


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