We learn t what are the prime numbers earlier. We have worked on various problem on prime numbers, look for the list of prime numbers below.
Look at the prime numbers from 2 to 10.
The number 2 is exactly divisible by 2 and 1.
The number 3 is exactly divisible by 3 and 1.
The number 4 is exactly divisible by 4, 2 and 1.
The number 5 is exactly divisible by 5 and 1.
The number 6 is exactly divisible by 6, 3, 2 and 1.
The number 7 is exactly divisible by 7 and 1.
The number 8 is exactly divisible by 8, 4, 2 and 1.
The number 9 is exactly divisible by 9,3 and 1.
The number 10 is exactly divisible by 10, 5, 2 and 1.
The numbers 4, 6, 8, 9, 10 are having more than 2 factors
The numbers 2, 3, 5, 7 are having exactly two factors, say 1 and the same number. Such numbers are called as prime numbers.
Observe the list prime numbers above.
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