Q: What are the prime factors of the number 243,242,080?

 A: 2, 5, 433, 3511

Why are those the prime factors of the number 243,242,080?

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 243,242,080

243,242,080
Factor Arrows
2121,621,040
Factor Arrows
260,810,520
Factor Arrows
230,405,260
Factor Arrows
215,202,630
Factor Arrows
27,601,315
Factor Arrows
51,520,263
Factor Arrows
4333,511

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, 5, 433, 3511

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 433 x 3,511 = 243,242,080

This can also be written as 25 x 51 x 4331 x 3,5111 = 243,242,080

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


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