Yes.... look at the number 20. It's a composite and it does have a square root.
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Yes. In fact, all of them are. They are all divisible by one and themselves, of course, but they also all have (at least) a square root.
Which of the following is a composite number between 57,47,17,2
The smallest number that is both odd and composite is 9, which is divisible by 3. The odd numbers are 1, 3, 5, 7, 9, 11, ..., and 1, 3, 5, and 7 are all prime. It is 9 that is the smallest odd composite number.
38 is a composite number
The number 121 is a composite number, since it is divisible by 11.
289 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 17 is a factor of 289 that makes it a composite number.