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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.

Q: What number is both a prime number and a multiple of 3?

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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.

21 is composite number that is a multiple of 3. 31 is a prime number.

A prime multiple is when a number is expressed as the product of its prime factors as for example: 2*3*5*7 = 210

No, it's a multiple of 3

A multiple of 11 can't be a prime number.

Related questions

Of course. There is 3. Remember, multiples of 3 can also be divided by 3, so the only prime number that is a multiple of 3 is 3.

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.

2 and 3 are prime numbers 48 is a multiple of.

It is a multiple of 3.

It is a multiple of 3.

If the GCF of two numbers is 1, their LCM will be their product. Such numbers are called relatively prime, or co-prime. Any two prime numbers (like 3 and 5) will be that way, but the numbers don't have to be prime (like 4 and 9).

21 is composite number that is a multiple of 3. 31 is a prime number.

One two digit number that is not prime and is not a multiple of 2, 3, or 5 is 49. Another such number is 91.

No, it's a multiple of 3

A prime multiple is when a number is expressed as the product of its prime factors as for example: 2*3*5*7 = 210

A multiple of 11 can't be a prime number.

987 is a composite number that is a multiple of 3.