524287
This number is a prime.
Single Curio View: (Seek other curios for this number)
Between 1588 and 1772, the prime 524287 remained the “largest known prime” for 184 years! — and the
longest-known duration for which this record stayed unbroken. [Gudipati]
Submitted: 2026-01-29 02:19:57; Last Modified: 2026-01-29 02:56:46.
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