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Find a counterexample to the conjecture: Any number that is divisible by 2 is also divisible by 4
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Find a counterexample to the conjecture: Any number that is divisible by 2 is also divisible by 4

User BillyMedia
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Choose number 2, it is divisible by 2,
2:2=1 but it is not divisible by 4, because
2:4=0,5 but
0,5 \\otin \mathbb Z.
User Syneptody
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