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Using divisibility tests, determine which of the following numbers are divisible by 4 and by 8.(a) 572 (b) 726352
The given numbers are (a) 572 and (b) 726352.
To do :
We have to find which of the given numbers are divisible by 4 and by 8.
Divisibility by 4
If the last two digits of a number are divisible by 4, then that number is a multiple of 4 and is divisible by 4 completely.
In 572, 72 is divisible by 4.
Therefore, 572 is divisible by 4.
572 is not divisible by 8.
Divisibility by 8
If the last three digits of a number are divisible by 8, then the number is completely divisible by 8.
In 726352, 52 is divisible by 4.
Therefore, 726352 is divisible by 4.
In 726352, 352 is divisible by 8.
Therefore, 726352 is divisible by 8.
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