Q: What are the prime factors of the number 152,342,304?

 A: 2, 3, 17, 19

Why are those the prime factors of the number 152,342,304?

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 152,342,304

152,342,304
Factor Arrows
276,171,152
Factor Arrows
238,085,576
Factor Arrows
219,042,788
Factor Arrows
29,521,394
Factor Arrows
24,760,697
Factor Arrows
31,586,899
Factor Arrows
1793,347
Factor Arrows
175,491
Factor Arrows
17323
Factor Arrows
1719

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, 17, 19

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 17 x 17 x 17 x 17 x 19 = 152,342,304

This can also be written as 25 x 31 x 174 x 191 = 152,342,304

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


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