5, 11 and 17 are Prime number but 9 and 27 are composite numbers
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11 is prime.
The prime numbers from 1 to 27 are 2, 3, 5, 7, 11, 13, 17, 19, and 23.
29 is the next prime number after 27. But 27 is not a prime! 3 x 9 = 27!
A prime number has exactly two distinct factors: 1 and itself.27 has factors 1, 3, 9 and 27 - not prime8 has factors 1, 2, 4, 8 - not prime4 has factors 1, 2, and 4 - not prime11 has factors 1 and 11 - prime
The number three is prime number. It canå«t be dividet by other numbers except by one and three. Other prime numbers are 1, 3, 5, 7, 11, 13, 17, 19, 23, 27, 29, 31,