WHAT ARE NATURAL NUMBERS?

What is Natural Number;symbol and representation on number line

If A = {4n+ 2| n is a natural number} and B = {3n|n is a natural number}, then what is (A nn B) equal to?

Let A = (x : x is a square of a natural number and x is less than 100) and B is a set of even natural numbers. What is the cardinality of A cap B ?

If A={4n+2|n " is a natural number"} and B={3n|n " is a natural number"} , then what is (AnnB) equal to?

LCM of first 100 natural numbers is N. What is the LCM of first 105 natural numbers?

What is the Arithmetic mean of the first 'n' natural numbers ?

If A = { x : x is an even natural number}, B = { x : x is a natural number and multiple of 5 } and C= { x : x is a natural number and multiple of 10}, then what is A cap(B cup C) equal to ?

Let A={x:x is a square of a natural number and x is less than 100} and B is a set of even natural numbers. What is the cardinality of AnnB ?

What is the LCM of smallest prime and smallest composite natural number?