I like this one.

[Dingo]

I had to start doing work to be able to create the Team and since then have had a couple of old computers on it.  I have found 31 Unranked Primes with the highest as of today  4,005·2286,829−1 Prime k=4,005 Digits 86,348 Status Prime Form Riesel.  They have started to slow down now not found a prime in three days as the numbers get larger.

My Profile on Prime Crunch

I asked co-pilot to create me a avatar with my name at the top and Beach scene and it generated the attached image.  Much easier than me fumbling around trying to do it and then not ending up as good as this.

[Dingo]

I have now found 44 Primes in Primecrunch.  I am hoping to find a Prime over a million digits with one of my RPI's. 

My latest RPI prime is not in the top 1000 but getting there.

Code Select Expand


5,479 · 2560,445 − 1
Prime
168,715 digits
Linux / arm64
Prime, and ours. primecrunch found it on 15 September 2026.

The record
oldest first
2026-09-15 01:43
Fermat test: probable prime
Dingo · Linux / arm64 · 01:16 → 01:43, 26m 54s compute
2026-09-15 02:43
LLR proof: prime
Dingo · Linux / arm64 · 01:43 → 02:43, 59m 44s compute
15 Sep 2026
[b]Entered the public record
Dingo; primecrunch.com; PSieve; srsieve; PRST · pzktupel.de[/b]
Where it stands
by digit count
7,409,172
largest known Riesel prime with k below 10,000: 69·2^24612729-1, 13 Aug 2024
1,415,549
largest primecrunch discovery: 1011·2^4702339-1, world rank 927
923,213
t5k top 5,000 floor: below this line no world rank exists, and the floor only rises
168,715
This number. 7,123rd largest of the 160,580 known Riesel primes with k below 10,000.
754,498 digits short of the t5k list; n would need to reach about 3,066,800
127th largest of the primes primecrunch has discovered.

Its neighbourhood
k 5,479 →
n 500,000 – 999,999, the 500,000-wide cell this candidate falls in
483,060 done
16,940 to do
Ready
16,864
Allocated
76
Prime
1
Probable
1
Completed frontier
-
Unverified frontier
499,999