If a number is divisible by 8, then it is divisible by 2 and 4
That is correct. Since 8 is a multiple of both 2 and 4, any number that is divisible by 8 will also be divisible by 2 and 4.
To determine if a number is divisible by 8, you need to check if it is divisible by both 2 and 4. Here are the steps to determine if a number is divisible by 8:
Step 1: Check if the number is divisible by 2:
To determine if a number is divisible by 2, check if its last digit is even. If the last digit is 0, 2, 4, 6, or 8, then the number is divisible by 2.
Step 2: Check if the number is divisible by 4:
To determine if a number is divisible by 4, check if the number formed by its last two digits is divisible by 4. If the number formed by the last two digits is divisible by 4, then the original number is divisible by 4.
Step 3: If the number passes both Step 1 and Step 2, then it is divisible by 8. If it fails either Step 1 or Step 2, then it is not divisible by 8.