Question

10. Using divisibility tests, determine which of the following numbers are divisible by 2; by 3; by 4; by 5; by 6; by 8; by 9; by 10; by 11(Write YES or NO) Number Divisible by 2 3 4 5 6 8 9 10 11 128 275 990 1586 6686

Answer 1

Divisibility Rule :

2 - If the number ends in 2, 4, 6, 8, 0 then it is divisible.

3 - If the sum of the digits is divisible by 3 then it is divisible.

4 - If the last 2 digit is divisible by 4 then the number ia divisible.

5 - If the number ends in 5 or 0 then it is divisible.

6 - If the number is divisible by both 2 and 3 then the number is divisible.

8 - If the last 3 digits of the number is divisible by 8 then the number is divisible.

9 - If the sum of the digits is divisible by 9 then it is divisible.

10 - If the number ends in 0 then it is divisible.

11 - If the alternating sum of the digits in the number is divisible by 11 then the number is divisible.

128 - Divisible by 2, 4, 8

275 - Divisible by 5, 11

990 - Divisible by 2, 3, 5, 6, 9, 10, 11

1586 - Divisible by 2

6686 - Divisible by 2

Answer 2

Answer:

check this attachment sheet