Q: What are the prime factors of the number 152,321,784?

 A: 2, 3, 19, 17581

Why are those the prime factors of the number 152,321,784?

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 152,321,784

152,321,784
Factor Arrows
276,160,892
Factor Arrows
238,080,446
Factor Arrows
219,040,223
Factor Arrows
36,346,741
Factor Arrows
19334,039
Factor Arrows
1917,581

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, 19, 17581

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 19 x 19 x 17,581 = 152,321,784

This can also be written as 23 x 31 x 192 x 17,5811 = 152,321,784

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


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