go back

Record history for k=15

k Primes n's Digits Year Discoverer
15 (14512034548 + 87496195n)149#+1
0..14 68 2019 Norman Luhn
15 (829774854 + 61796110n)131#+1
0..14 60
2019 Mike Oakes
15(14563635080 + 9152216n)113#+10..14572019Norman Luhn
15 (237375311 + 118560155n)109#+1 0..14 54 2009 Mike Oakes, NewPGen, PrimeForm
15 (358766428 + 17143877n)101#+1 0..14 48 2005 Jens Kruse Andersen
15 17 + 1138781900732575213#n 2..16 22 2001 Phil Carmody