A Prime number has two factors: one and the number itself. A prime number does not have any proper factors.
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One and the number itself.
Any of its prime factors which are: 2, 3 and 7
A prime number is any number that only has one and itself as factors. Therefore, any number that has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.
A prime number is any number that only has one and itself as factors. Therefore, any number that has more than two factors is not prime. Check the the factors of a number to tell if it is prime or not.
Any prime numbers: 3,5,7,11,13,17,19,etc.