Property 4 The square of a natural number other than one is either a multiple of 3 or exceeds a multiple of 3 by 1.

Property 5 The square of a natural number other than one is either a multiple of 4 or exceeds multiple of 4 by 1.

The square of a natural mumber (other than 1) is either a multiple of 3 or exceeds a multiple of 3 by _____

The sum of all natural numbers between 100 and 200, which are multiples of 3 is :

There are 25 tickets numbered from 1 to 25. A ticket is drawn at random. Find the probability that the number of that ticket is either a multiple of 2 or multiple of 3.

Write the cubes of 5 natural number which are multiples of 3 and verity the followings: The cube of a natural number which is a multiple of 3 is a multiple of 27

The number of 4-digit numbers which are neither multiple of 7 nor multiple of 3 is _________ .

The square of any odd natural number other than 1 can be expressed as the sum of two consecutive natural numbers.

Find the sum of all 3 – digit natural numbers, which are multiples of 11.

Natural numbers are not closed under multiplication.