A prime number is a number which has only two factors. that is 1 and the number itself. All these prime numbers are odd numbers except 2. For example 1,2,3,5,7,11,13,....etc1., 1 is a unique no. 2 is the only even prime number.
A prime number can be
divided evenly only by 1, or itself. And it must be a
whole number greater than 1. Example: 5 can only
be divided evenly by 1 or 5, so it is
a prime number.
But 6 can be
divided evenly by 1, 2, 3 and 6 so it is NOT a prime number (it is a composite
number).
Examples:
· Is 8 a prime
number? No, because it can be divided evenly by 2 or 4 (2×4=8), as
well as by 1 and 8.·
Is 73 a Prime
Number? Yes, it can only be divided evenly by 1
and 73.
