I understand that -1/3 can be represented in 2-adics as $01010101...$, and 1/3 is just $1101010101...$. What about 1/2, though? Is it possible to represent it as an infinite expansion, or is the only way to represent 1/2 by adding "decimal places"?
2026-03-30 03:37:53.1774841873
What is the 2-adic expansion of 1/2?
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