Supremum

Divisibility test of numbers Divisible by 1:- Any number is divisible by 1. Example:- 1, 2, 5, 8, -2, 0,.....etc. Divisible by 2:- Any number is said to be divisible by 2 when the digit of the unit’s place  of that number is 2 or the multiple of two. Example:- 332, 4454. 8906,....etc. Divisible by 3:- Any number is said to be divisible by 3 when the sum of the digits of that number is a multiple of 3.   Example:- 45, 33, 5556711, …..etc. Divisible by 4:- A number is said to be divisible by 4 when the number formed by the last digits of that number is divisible by 4. Example:- 544, 532, 777788, 9924,..etc. Divisible by 5:- A number is said to be divisible by 5 when the unit’s place digit of that number is either 0 or 5. Example:- 4455, 670,67785,....etc. Divisible by 6:- A number is said to be divisible by 6 when that number is divisible by both 2 and 3. Example:- 42, 36, 78, 9912,... etc. Divisible by 7:- A number is said to be divisible by 7 when the difference between the