Q: What are the prime factors of the number 152,940,432?

 A: 2, 3, 17, 23, 29, 281

Why are those the prime factors of the number 152,940,432?

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 152,940,432

152,940,432
Factor Arrows
276,470,216
Factor Arrows
238,235,108
Factor Arrows
219,117,554
Factor Arrows
29,558,777
Factor Arrows
33,186,259
Factor Arrows
17187,427
Factor Arrows
238,149
Factor Arrows
29281

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, 23, 29, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 23 x 29 x 281 = 152,940,432

This can also be written as 24 x 31 x 171 x 231 x 291 x 2811 = 152,940,432

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


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