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TTP GRE Quant Tip: When is a Number Divisible by 2?
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08 Sep 2022, 10:20
7
Expert Reply
When is a Number Divisible by 2
There are times when these divisibility rules can be helpful in simplifying numbers and prime factorization, and times when these rules can be helpful in determining whether a number is a multiple of another number. A number is divisible by 2 if the ones digit is 0, 2, 4, 6, or 8 – that is, if the units digit is even. For example, 30, 42, 54, 66, and 78 are divisible by 2.
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