S/R Base 5 Primes reported in 2016

Joe O · 2016-01-15, 00:59

rank prime digits who when comment

50 306398 · 5^2112410 - 1 1476517 L4274 Jan 2016

Joe O · 2016-03-08, 18:23

rank prime digits who when

53 77072 · 52139921 + 1 1495746 L4340 Mar 2016

Joe O · 2016-03-16, 21:33

Aus_Karlos found the world record base 5 mega prime 92158*5^2145024+1. This prime is 1,499,313 digits long.

This eliminates k=92158 from the base 5 Sierpinski problem, leaving 33 k's remaining. The base 5 Riesel problem has 77 k's remaining.

Joe O · 2016-03-28, 15:00

rank prime digits who when

50 296024 · 5^2185270 - 1 1527444 L671 Mar 2016

Joe O · 2016-06-04, 02:26

The 1,549,387 digit SR5 prime 53546*5^2216664-1 was discovered on May 30th.

Joe O · 2016-08-21, 17:47

Congratulations to 288larsson for finding our 6th SR5 prime of the year,
The prime 180062*5^2249192-1 eliminates k=180062 from the base 5 Riesel problem. 74 ks remain.

This is largest known base 5 prime, and the 48th largest known prime overall.

2016-01-15, 00:59	#1
Joe O Aug 2002 3·5²·7 Posts	S/R Base 5 Primes reported in 2016 rank prime digits who when comment 50 306398 · 5^2112410 - 1 1476517 L4274 Jan 2016

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2016-03-08, 18:23	#2
Joe O Aug 2002 1015₈ Posts	rank prime digits who when 53 77072 · 52139921 + 1 1495746 L4340 Mar 2016

2016-03-16, 21:33	#3
Joe O Aug 2002 20D₁₆ Posts	Aus_Karlos found the world record base 5 mega prime 92158*5^2145024+1. This prime is 1,499,313 digits long. This eliminates k=92158 from the base 5 Sierpinski problem, leaving 33 k's remaining. The base 5 Riesel problem has 77 k's remaining.

2016-03-28, 15:00	#4
Joe O Aug 2002 1000001101₂ Posts	rank prime digits who when 50 296024 · 5^2185270 - 1 1527444 L671 Mar 2016

2016-06-04, 02:26	#5
Joe O Aug 2002 20D₁₆ Posts	The 1,549,387 digit SR5 prime 53546*5^2216664-1 was discovered on May 30th.

2016-08-21, 17:47	#6
Joe O Aug 2002 20D₁₆ Posts	Congratulations to 288larsson for finding our 6th SR5 prime of the year, The prime 180062*5^2249192-1 eliminates k=180062 from the base 5 Riesel problem. 74 ks remain. This is largest known base 5 prime, and the 48th largest known prime overall.