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The number 3 is a Prime number because 1 and 3 is its only factors. A prime number has only two factors, in this case 1 and 3 are the factors. 17,11,7 and 13 are examples of prime numbers.

Q: Why number 3 is prime number?

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3 is a prime number. Any number that only has itself and one as factors is a prime number. Therefore, since there are no factors of 3 other than one and itself it is a prime number.

3 is a prime.

3 is a prime number. 13 is a prime number. 3 x 13 cannot be prime.

81 is not a prime number. 81 = 3 * 3 * 3 * 3

It depends how its used. 3 is a prime number. 3 is a prime factor of 12.

Related questions

The prime number is the prime factorization. For example, the prime factorization of the prime number 3 is 3. Get it?

3 is a prime number. Its only prime factor is 3.

3 is a prime number.4 is not a prime number. It is a composite number.

3 is a prime number.

3 is a prime number

3 is a prime number. Any number that only has itself and one as factors is a prime number. Therefore, since there are no factors of 3 other than one and itself it is a prime number.

3 is a prime number because its only factors are 1 and 3. A prime number is a number that's factors are 1 and itself.

3 is a prime.

3 is a prime number. 13 is a prime number. 3 x 13 cannot be prime.

3 is a Prime number. Its only prime factor is 3.

3 is a prime number, but 9 is not. It is a compound number and the square of the number 3.

81 is not a prime number. 81 = 3 * 3 * 3 * 3