Q: What are the prime factors of the number 150,840?

 A: 2, 3, 5, 419

Why are those the prime factors of the number 150,840?

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 150,840

150,840
Factor Arrows
275,420
Factor Arrows
237,710
Factor Arrows
218,855
Factor Arrows
36,285
Factor Arrows
32,095
Factor Arrows
5419

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, 5, 419

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 419 = 150,840

This can also be written as 23 x 32 x 51 x 4191 = 150,840

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


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