Question

is the 1,2,3,... arerational number

Answer 1

In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

Answer 2

yeah

because these can be written as
2/1
1/1
3/1and so on.....