Q: What are the prime factors of the number 152,160,000?

 A: 2, 3, 5, 317

Why are those the prime factors of the number 152,160,000?

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 152,160,000

152,160,000
Factor Arrows
276,080,000
Factor Arrows
238,040,000
Factor Arrows
219,020,000
Factor Arrows
29,510,000
Factor Arrows
24,755,000
Factor Arrows
22,377,500
Factor Arrows
21,188,750
Factor Arrows
2594,375
Factor Arrows
3198,125
Factor Arrows
539,625
Factor Arrows
57,925
Factor Arrows
51,585
Factor Arrows
5317

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, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 5 x 5 x 317 = 152,160,000

This can also be written as 28 x 31 x 54 x 3171 = 152,160,000

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


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