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 Showing results 1 to 8 of 8 Search took 0.01 seconds. Search: Posts Made By: Yusuf
 Forum: Puzzles 2021-07-12, 04:16 Replies: 35 Views: 4,539 Posted By Yusuf I first found it on OpenPFGW using the 3-PRP... I first found it on OpenPFGW using the 3-PRP test, then I tested it in Mathematica using PrimeQ (this takes a while to run). For proven primes the best solution I have is 30008 digits (proof of...
 Forum: Puzzles 2021-07-12, 03:20 Replies: 35 Views: 4,539 Posted By Yusuf Hello, how many digits was your max solution? The... Hello, how many digits was your max solution? The highest one I got is 386,642 digits (I attached the full solution), although it is a probable prime, not proven.
 Forum: XYYXF Project 2021-06-30, 05:24 Replies: 480 Views: 106,642 Posted By Yusuf I found a new record for largest Leyland PRP It... I found a new record for largest Leyland PRP It is 386642 digits long (previous record is 386434 digits) PRP: 81650^54369+54369^81650
 Forum: Puzzles 2021-06-24, 23:40 Replies: 35 Views: 4,539 Posted By Yusuf Sure, I'll let you know what my largest solution... Sure, I'll let you know what my largest solution is once the challenge ends
 Forum: Puzzles 2021-06-23, 04:31 Replies: 35 Views: 4,539 Posted By Yusuf Solved it today, largest solution I found so far... Solved it today, largest solution I found so far is greater than 10^545
 Forum: Puzzles 2021-04-25, 02:18 Replies: 25 Views: 3,766 Posted By Yusuf But it says "the set is of size n-7", wouldn't... But it says "the set is of size n-7", wouldn't that mean that there are 7 spins since there are 7 numbers being taken away from the wheel?
 Forum: Puzzles 2021-04-24, 05:26 Replies: 25 Views: 3,766 Posted By Yusuf Confused about the bolded part: "Your goal: Find... Confused about the bolded part: "Your goal: Find an n such that there is a set of unwinnable numbers for seven steps (i.e., the set is of size n-7). In your answer, supply the number n and the...
 Forum: Puzzles 2020-01-08, 22:52 Replies: 59 Views: 26,982 Posted By Yusuf I used the following Mathematica code to attain a... I used the following Mathematica code to attain a MSE of 2.92237E-6 f[x_, a_, b_, c_, d_, m_, v_, g_] := 1/2*(Abs[x]-((x*x*(x*x*(a*x*x+b)+c)+g)/(x*x*(x*x+v)+m)))^2; NMinimize[{NIntegrate[f[x, a, b,...
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