Question

divisible rule of 1 to 10?​

Answer 1

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Divisibility by 1

Rule 1: Every integer n is divisible by 1.

Divisibility by 2

Rule 2: An integer n is divisible by 2 if and only if n is even, i.e., the last digit of n is either 0, 2, 4, 6, or 8.

Divisibility by 3

Rule 3: An integer n is divisible by 3 if and only if the sum of the digits of n is divisible by 3.

Divisibility by 4

Rule 4: An integer n is divisible by 4 if and only if the number formed by the last two digits of n is divisible by 4.

Divisibility by 5

Rule 5: An integer n is divisible by 5 if and only if the last digit of n is either 0 or 5.

Divisibility by 6

Rule 6: An integer n is divisible by 6 if and only if it is divisible by both 2 and 3, i.e., n is even and the sum of the digits of n is divisible by 3.

Divisibility by 7

Rule 7: An integer n is divisible by 7 if and only if the number formed by removing the last digit of n subtract the number formed by two multiplied by the last digit of n is divisible by 7.

Divisibility by 8

Rule 8: An integer n is divisible by 8 if and only if n is even, n2 is even, and n4 is even.

Divisibility by 9

Rule 9: An integer n is divisible by 9 if and only if the sum of the digits of n is divisible by 9.

Divisibility by 10

Rule 10: An integer n is divisible by 10 if and only if the last digit of n is 0.

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