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The last 2 digits are divisible by 4

1312 is (12÷4=3) (1312 ÷ 4=328).

7019 is not- so four does not go in (evenly).

That one is great, but I have found one that works too. Divide the number by two, if it is still even- it is a multiple of four. ( Divide in half one more time to get your answer).

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13y ago

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