Is 9980 Divisible By 8?

Here we will use a Divisible by 8 rule to find out if 9980 is divisible by 8.
Even Rule: If the hundreds digit in 9980 is EVEN, and the last two digits in 9980 are divisible by 8, then 9980 is divisible by 8.
Odd Rule: If the hundreds digit in 9980 is ODD, and the last two digits in 9980 plus 4 is divisible by 8, then 9980 is divisible by 8.
The hundreds digit in 9980 is 9, which is odd, and the last two digits are 80.
Thus, we use the Odd Rule above:
80 + 4 = 84. 84 is not divisible by 8, therefore 9980 is not divisible by 8.
The answer to "Is 9980 Divisible By 8?" is no.
9980 divided by 8 is 1247.5.
Is 9981 Divisible by 8?
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