21 is not prime.
Yes it is.
There are no prime numbers between 89 and 97.
89 has two factors: 1 and 89. It is a prime number.
57 - 59 - 61 - 67 - 71 - 73 - 79 - 83 - 87 - 89
89 is a prime number. Prime numbers only have 2 factors. Composite numbers have over 2 factors.
89
The numbers 83, 89 and 97 are prime.
The numbers 83, 89 and 97 are prime.
89 is a prime number. The only two factors of a prime number are 1 and itself.The only factor pair of 89 is 1 x 89. There is only one factor pair of a prime number.The proper factors of 89 are only 1 or, if the definition you are using excludes 1, there are none.The only prime factor of 89 is 89. There is only one prime factor of a prime number - itself.The distinct prime factor (listing each prime factor only once) of 89 is also 89.The prime factorization of 89 is 89. In some cases, to emphasize that it is prime, you might write the prime factorization as 1 x 89 (but 1 is not a prime number).NOTE: There cannot be common factors, a greatest common factor, or a least common multiple of a single number because "common" refers to factors or multiples that two or more numbers have in common.
These numbers are ALL prime.
There are none because 89 is a prime number