No, it is not possible. Every multiple of 21 is a composite number.
21 is a composite number and its factors are 1, 3, 7 and 21(4 factors). Any multiple of 21 must have all the factors of 21. So, every multiple of 21 has at least 4 factors.
And a Prime number has only two factors so, any multiple of 21 can't be prime.
21 is composite number that is a multiple of 3. 31 is a prime number.
If 21 is a multiple of the number, the number cannot have 90 as a factor.
21 = 3x7, and so is not prime, as it can be expressed as the product of multiple prime numbers
21 is a composite number, not a prime, having prime factors 3x7.
number 21 is prime
It is not possible for any multiple of a prime number to be prime.
A prime number is a multiple of itself and one.
Yes. 25 is a multiple of 5 and the number 5 is a prime number.
There is not a multiple of 7 that is prime.
There is an infinite number of prime numbers that are greater than 21. The next prime number after 21 is 23.
Yes. A prime number is a multiple of 1.
The only prime factor of 4 is 2. No prime number is a multiple of 5.
11 is a prime number but 21 is not a prime number as it is divisible by 3.
21 and 6 are two composite numbers that have 42 as a common multiple. One of the prime factors of 42, which is 3, is a prime factor of 21 and 6 as well. The prime factorization of 42 (2 x 3 x 7) includes the prime factorization of 21 (3 x 7) and 6 (2 x 3).
No prime is a multiple of any number other than itself and one.
number is both a prime number and a multiple of 5 = 5
No. The only factors of a prime number are 1 and itself. The only way that 21 could be a factor of a prime number is if it were a prime number, but it is not because 21 is also divisible by 3 and 7.
A multiple of 13 will be a composite number. Because the number will have 13 as a factor, it cannot be a prime number.
Yes, and of the composite number. LCM stands for Least Common Multiple. It's a multiple that's common to both of them.
You could say that a prime number is also a multiple of 1. A good definition of prime number is: "a natural number with exactly two distinct factors". This definition explains why 1 is not a prime number.
5, which is the only prime number which is a multiple of 5!
No number that is a multiple of 3, can be a prime number. A prime number must only be divisible by itself and 1. It cannot be divisible by any other number. Therefore if it is a multiple of 3, then it must be divisible by 3 and hence, not a prime number.
21 22 23 24 which is the prime number
Yes, 3 is a prime number. Any other multiple of 3 can't, because the only factors of a prime number are 1 and the number.