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Digit sum = 3 is divisible by 3. 1+1+1 = 3. There fore, 111 is composite.

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Yuanhao Bu

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3y ago

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Wiki User

14y ago

Because in addition to '1' and itself, it's also divisible by 3 and 37.

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Q: Why is 111 not a prime number?
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Related questions

Is 111 prime or compise number?

prime


Is 111 a prime factor?

No. The number 111 is composite.


Is 111 a prime number?

No. 111 = 3 * 37


Which of these numbers is the best prime number is it 111 or 113 or 115?

113 is a prime number. 111 and 115 are composites.


Is 111 a prime number Justify?

111 is composite. If the sum of the digits in the number is divisible by 3, then the number itself is. 1+1+1 = 3, therefore 111 is divisible by 3. 111/3=37 37 is prime, so the prime factorisation of 111 is 3x37.


Is 111 prime number?

If a number has only two factors then it is prime. For every natural number(except 1) we are sure about its two factors: 1 and the number itself. So the two factors we already know of 111 are 1 and 111. So if there exists some number which divides 111 evenly then 111 has more than two factors implies 111 is a composite number. 111 is not a prime number because it is divisible by 3.


Is 111 a composite or prime number?

111 is not a prime number. It is a composite number. A prime number is any number whose only factors are 1 and itself. 111's factors are 1, 3, 37, and 111. Well, it is prime if 111 is base 2 (binary) :P


Is 111 prime or composite?

As 1+1+1=3, 111 can be divided by 3 then it's a composite number


Is the number 777 a prime number?

No it is not a prime number. It is divisible by 1, 7, 111 and 777


Is 111 an composite or prime number?

composite because 3*37 = 111


Is 111 704 a prime number?

No, it is not.


What times what equals 111-?

111 is not a prime number. You can multiply 3 x 37 and 1 x 111 to get 111.