Q: What are the prime factors of the number 242,880?

 A: 2, 3, 5, 11, 23

Why are those the prime factors of the number 242,880?

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 242,880

242,880
Factor Arrows
2121,440
Factor Arrows
260,720
Factor Arrows
230,360
Factor Arrows
215,180
Factor Arrows
27,590
Factor Arrows
23,795
Factor Arrows
31,265
Factor Arrows
5253
Factor Arrows
1123

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, 11, 23

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 3 x 5 x 11 x 23 = 242,880

This can also be written as 26 x 31 x 51 x 111 x 231 = 242,880

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


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