![]() |
![]() |
#1 |
Mar 2010
On front of my laptop
7716 Posts |
![]()
This search is for seeking primes of the form k#*2^n-1.
I tested k=547. Found primes (mentioned on other thread): 547#*2^3969-1 547#*2^4789-1 547#*2^4848-1 547#*2^6126-1 547#*2^6183-1 547#*2^6280-1 547#*2^6698-1 547#*2^6827-1 547#*2^6844-1 547#*2^7488-1 547#*2^7497-1 547#*2^7689-1 547#*2^7850-1 547#*2^8291-1 547#*2^8539-1 Tested to n=10000. |
![]() |
![]() |
![]() |
#2 |
Mar 2010
On front of my laptop
7×17 Posts |
![]()
Sorry, didn't posted the smaller ones:
![]() 547#*2^24-1 547#*2^39-1 547#*2^121-1 547#*2^159-1 547#*2^199-1 547#*2^272-1 547#*2^322-1 547#*2^450-1 547#*2^470-1 547#*2^748-1 547#*2^756-1 547#*2^807-1 547#*2^879-1 547#*2^926-1 547#*2^1078-1 547#*2^1148-1 547#*2^1432-1 547#*2^1478-1 547#*2^1517-1 547#*2^1613-1 547#*2^1661-1 547#*2^1748-1 547#*2^1902-1 547#*2^1954-1 547#*2^1981-1 547#*2^2225-1 547#*2^2529-1 547#*2^3265-1 |
![]() |
![]() |
![]() |
Thread Tools | |
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Largest Known Primorial | a1call | Miscellaneous Math | 11 | 2016-12-14 21:35 |
Primorial calculation | FreakyPotato | Programming | 7 | 2015-02-06 10:33 |
Welcome to "Riesel Prime Search" | Kosmaj | Riesel Prime Search | 21 | 2012-09-14 09:51 |
Primorial puzzle | Citrix | Puzzles | 3 | 2006-03-07 15:07 |
Primorial question | Dougy | Math | 2 | 2005-07-28 13:13 |