A boy has some toffees. If he gives 2 or 3 or 5 toffees to each of his friends he is left with no toffee. The least number of toffees he must have is
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A boy has some toffees. If he gives 2 or 3 or 5 toffees to each of his friends he is left with no toffee. The least number of toffees he must have is