Question

Using divisibility test, determine which of the following

numbers are divisible by2,by3,by4,by5,by6,by 8,

by9,by10andby11(say yes or no).​

Answer 1

Answer:

Divisibility test:

Divisibility of numbers by 2:

A number that has 0, 2, 4, 6 or 8 in its ones place is divisible by 2.

Divisibility of numbers by 3:

A number is divisible by 3 if the sum of its digits is divisible by 3.

Divisibility of numbers by 4:

A number is divisible by 4 if the number formed by its last two digits (i.e. ones and tens) is divisible by 4.

Divisibility of numbers by 5:

A number that has either 0 or 5 in its ones place is divisible by 5.

Divisibility of numbers by 6:

A number is divisible by 6 if that number is divisible by both 2 and 3

Divisibility of numbers by 8:

A number is divisible by 8 if the number formed by its last three digits (i.e. ones, tens and hundreds) is divisible by 8.

Divisibility of numbers by 9:

A number is divisible by 9 if the sum of its digits is divisible by 9.

Divisibility of numbers by 10:

A number that has 0 in its ones place is divisible by 10.

Divisibility of numbers by 11:

If the difference between the sum of the digits at the odd and even places in a given number is either 0 or a multiple of 11, then the given number is divisible by 11.

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Answer 2

Step-by-step explanation:

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