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If you go through the powers of 2 - 2, 4, 8, 16, etc. in ascending order, the last digit encountered will be 7 (in 32768 = 2^15, the second last being the 9 in 4096). What is the last two-digit combo you'll hit and at what power of 2? (Obviously the sequence starts with 16, 32, 64, 12, 28, 25, 56,... but which one is the last to be seen?)

Question #152558. Asked by WesleyCrusher.
Originally posted Sep 27 2026 1:41 PM.

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