Types of number - Song

Number, number, number, Prime number
Number, number, number, Composite number
Even number, Perfect number, odd number,
Twin Prime number, Co-prime number

Numbers having only two factors 1 and itself are called prime number
Numbers having more than two factors – Composite numbers
Number 1 is neither Prime nor Composite, it’s called Pseudo(2) number
A number for which sum of all its factors
is equal to twice the number is called Perfect number(2)

Two numbers having only 1 as a common factors – co prime number
Two prime numbers whose difference is two - Twin Prime number
A number with 0,2,4,6,8 at the ones place is called even number
A number with 1,3,5,7and 9 at the ones place is called odd number (2)