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VI-C

PRIME AND COMPOSITENUMBERS

PRIME NUMBERS WHAT IS A PRIME NUMBER ?

Number which have only two factors are called prime number 1 and the number itself.

Example

2 = 2 & 1 3 = 3 & 1

COMPOSITE NUMBERS

WHAT IS A COMPOSITE NUMBER ?

The number which have more than two factors are called composite number.

Example 4=2,1,4 6=1,2,3,6

CO-PRIME NUMBERS

WHAT ARE CO-PRIME NUMBER ? Two numbers that have only 1 as the

common factor are known as co-prime number. All the prime are co-prime numbers

Example 35 = 7x5x1 39 = 3x13x1