30 is not a Prime number since there are more numbers than itself and one as factors. As an example, 3 is a prime number because the factors of 3 are 3(itself) and 1.
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30 is composite. A composite number is simply a number that has more factors than 1 and itself. So since 3 times 10 is 30, we can call 30 composite. A prime number is a number whose factors are only 1 times the number, such as 3, 5, 7, 13, and 29.
No, 30 is not a prime number. It is a composite number. A prime number can only be divided by 1 and itself. 30 can also be divided by 2, 3, 5, 6, 10, and 15.
It is prime
86 is not a prime number, so is a composite.
No 168 is not a prime number it is a composite number