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Riesel primes of the form 209•2n-1

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Reserved! This sequence is currently part of Multi Reservation 7: NPLB K300 Drive 1.

Current data

k , b : 209 , 2
Type : Low
Count : 18
Nash : 998
Max n : 2,400,000
Date : 2024-06-05
Reserved : No Prime Left BehindNo Prime Left Behind/Reserved
4, 8, 16, 28, 40, 52, 80, 148, 328, 8464, 11704, 52372, 60172, 675232, 692692, 921484, 1207276, 1647640

History