Q: What are the prime factors of the number 328,460,144?

 A: 2, 19, 43, 25127

Why are those the prime factors of the number 328,460,144?

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 328,460,144

328,460,144
Factor Arrows
2164,230,072
Factor Arrows
282,115,036
Factor Arrows
241,057,518
Factor Arrows
220,528,759
Factor Arrows
191,080,461
Factor Arrows
4325,127

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, 19, 43, 25127

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 43 x 25,127 = 328,460,144

This can also be written as 24 x 191 x 431 x 25,1271 = 328,460,144

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


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