Q: What are the prime factors of the number 144,324,330?

 A: 2, 3, 5, 227, 21193

Why are those the prime factors of the number 144,324,330?

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 144,324,330

144,324,330
Factor Arrows
272,162,165
Factor Arrows
324,054,055
Factor Arrows
54,810,811
Factor Arrows
22721,193

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, 227, 21193

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 227 x 21,193 = 144,324,330

This can also be written as 21 x 31 x 51 x 2271 x 21,1931 = 144,324,330

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


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