Register FAQ Search Today's Posts Mark Forums Read

 2020-10-31, 03:06 #1 sweety439   Nov 2016 22×691 Posts Link for primes collect Last fiddled with by sweety439 on 2020-12-19 at 20:10
 2020-10-31, 03:36 #2 sweety439   Nov 2016 ACC16 Posts Link 1: * Smallest prime of the form k*b^n+-1 with n>=1 for bases 2<=b<=1030 and k=b-1 for bases 3<=b<=10000 * Primes of the form n*b^n+1 with n>=1 for bases 101<=b<=10000 * Primes of the form x^y*y^x+1 * Primes of the form x^y*y^x-1 * Primes of the form (n+-1)*b^n+-1 with n>=1 for bases 2<=b<=128 * Primes of the form (x^y+-1)*y^+-1 with x=2 or y=2 * Primes of the form b*(b+1)^n-1 with n>=1 and bases 2<=b<=2048 * Primes of the form (b^n+-1)^2-2 with n>=1 and bases b = 2, 6, 10, 14, 22, 204 * Numbers n such that k*2^n+1 and k*2^(n+1)+1 are both primes Link 3: * Primes of the form n*b^n+1 with n>=1 for bases 3<=b<=100 Link 4: * Primes of the form (b^p-1)/(b-1) with prime p for 2<=b<=160 * Primes of the form (b^p+1)/(b+1) with odd prime p for 2<=b<=160 * Primes of the form (b+1)^p-b^p with prime p for 1<=b<=160 * Primes p such that n^p-1 == 1 mod p^2 for 2<=n<=10125 Link 5: * Numbers n such that k*2^n+-1 are both primes * Numbers n such that k*2^n-1 and k*2^(n+1)-1 are both primes Link 6: * Smallest prime of the form k*2^n+-1 with even/odd n>=1 for k
 2020-10-31, 03:45 #3 sweety439   Nov 2016 22×691 Posts GitHub Pages for the smallest n>=1 such that (k*b^n+-1)/gcd(k+-1,b-1) created by me: k
 2020-10-31, 23:14 #4 sweety439   Nov 2016 1010110011002 Posts
 2020-11-04, 01:10 #5 sweety439   Nov 2016 22·691 Posts Last fiddled with by sweety439 on 2020-12-21 at 12:30
 2020-11-06, 12:07 #6 sweety439   Nov 2016 22×691 Posts A link of generalized repunit primes (achieved): https://web.archive.org/web/20021001...ads/index.html List of generalized repunit proven primes >= 100 decimal digits List of generalized repunit (probable) primes bases 2 to 999 Last fiddled with by sweety439 on 2020-11-06 at 12:08
 2020-11-08, 11:18 #7 sweety439   Nov 2016 22·691 Posts Links for left-truncatable primes: http://chesswanks.com/num/LTPs/ http://www.primerecords.dk/left-truncatable.htm https://rosettacode.org/wiki/Find_la...n_a_given_base Links for right-truncatable primes: http://fatphil.org/maths/rtp/rtp.html https://codegolf.meta.stackexchange....es/17229#17229 https://hlma.math.cuhk.edu.hk/wp-con...ea1b2408fa.pdf Links for minimal primes: https://cs.uwaterloo.ca/~cbright/reports/mepn.pdf https://scholar.colorado.edu/downloads/hh63sw661 https://cs.uwaterloo.ca/~cbright/tal...mal-slides.pdf My GitHub page for these three types of primes (in bases 2 to 160): https://github.com/xayahrainie4793/m...catable-primes Last fiddled with by sweety439 on 2020-12-19 at 20:21
 2020-11-08, 13:45 #8 sweety439   Nov 2016 22×691 Posts Link for factorization of Fibonacci/Lucas numbers: http://mersennus.net/fibonacci//
 2020-11-08, 13:50 #9 sweety439   Nov 2016 22·691 Posts https://brnikat.com/nums/: factorization of Homogeneous Cunninghams numbers (a^n+-b^n) and generalized Cullen/Woodall numbers (n*b^n+-1) and n!+-1
 2020-11-08, 14:02 #10 sweety439   Nov 2016 22·691 Posts GIMPS main page (factorization of Mersenne numbers): https://www.mersenne.org/
 2020-11-09, 16:35 #11 sweety439   Nov 2016 22×691 Posts

 Similar Threads Thread Thread Starter Forum Replies Last Post mgb PARI/GP 0 2019-07-21 20:47 PathFinder PrimeNet 4 2008-10-27 19:02 drew Soap Box 28 2008-04-02 15:43 Xyzzy Lounge 70 2006-04-10 15:49 Xyzzy Lounge 4 2003-06-28 13:37

All times are UTC. The time now is 02:43.

Sat Jan 23 02:43:52 UTC 2021 up 50 days, 22:55, 0 users, load averages: 1.80, 1.81, 1.80