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Problem of the Week
Problem C
Missing the Fives I

Bobbi lists the positive integers, in order, excluding all multiples of \(5\). Her resulting list is \[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 17, \ldots\] How many integers has Bobbi listed just before she leaves out the \(2023\)rd multiple of \(5\)?


Theme: Number Sense