Question

Write the test of divisibility of 2 ,3, 5

Answer 1

Answer:

Divisibility rule of 2: If the last digit is 2 or 0 Or a multiple of 2

Divisibility rule of 3: If the sum of the numbers is divisible by 3 it is said to be divisible by 3

Divisibility rule of 5: If the last digit is 0 or 5 then it is divisible by 5

Answer 2

Answer:

Divisibility test of 2:

The last digit if the no. must be even. For eg,( 68 Last digit 8 which is evan therefore 68 is divisible by 2. Same for 26, 6 is even. 49 is not a no. divisible by 2 because 9 is not even.

Divisibility test of 3:

The sum of all digits must be divisible by 3. For eg, 651; 6+5+1=12 which is divisible by 3. 754; 7+5+4= 16. 16 is not divisible by 3. Hence, the no.754 is not divisible by 3.

Divisibility test of 5:

The last digit of the no. should either be 5 or 0. For eg, 650, Last digit 0, so 650 is divisible by 5.

Same for 795 because last digit is 5. 894 is not divisible by 5 because last digit is 4 and not 0 or 5