数学テスト

Odd or even? (divisibility by 2)

Is number 283 even or odd?

Divisibility rules


A number is divisible by 2 if it ends in 0, 2, 4, 6, or 8. These numbers are called even numbers. Numbers not divisible by 2 are called odd numbers.

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

A number is divisible by 4 if the number's last two digits are divisible by 4 or the number ends with 00.

A number is divisible by 5 if it ends in 0 or 5.

A number is divisible by 6 if the sum of its digits is divisible by 3 and 2.

A number is divisible by 8 if the number's last three digits are divisible by 8 or the number ends with 000.

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

A number is divisible by 10 if it ends with 0.


   
   

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