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Forum: Puzzles 2021-07-12, 04:16
Replies: 35
Views: 4,159
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: 4,159
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: 477
Views: 103,457
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: 4,159
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: 4,159
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: 3,554
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: 3,554
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: 26,736
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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