1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 3333 and 9999.
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9999
113 x 88 = 9944 The highest four-digit number divisible by 88 is 9944.
All 4 digit numbers that are divisible by 9 are also divisible by 3. The first is 1008 and the last is 9999.
think I suppost to know.
9999/12345678910=8.099190067142286e-7