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21 is not prime.

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Q: Is 21 and 89 a pair of prime numbers?
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Related questions

Is 57 and 89 a pair of prime numbers?

No, and 57 is not a prime number.


Is 67 and 89 a pair of prime numbers?

Yes it is.


Are the numbers 21 41 59 73 89 prime?

No. At least one of them is not.


What are all the prime numbers from 89 and 97?

There are no prime numbers between 89 and 97.


What 3 numbers between 80 and 100 are prime numbers?

They are: 83 89 and 97


How many prime numbers are in 89?

89 has two factors: 1 and 89. It is a prime number.


What are the factors and prime factors of 89?

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.


Are 21 and89 prime?

21, no. 89, yes.


What are the prime numbers between 81 and 100?

The numbers 83, 89 and 97 are prime.


What are the prime numbers from 80 to 100?

The numbers 83, 89 and 97 are prime.


What numbers is prime 35 89 15 and 25?

89


Factor of 89?

89 is a prime number because its only factors are 1 and 89.