Abakcus on Twitter: "#TodayWeLearned that 1000000000000066600000000000001 is a prime number and it is called Belphegor's prime. https://t.co/6GrV2mGXmn" / Twitter
![Cliff Pickover on Twitter: ""Belphegor´s Eye" haunts mathematicians. Constructed with palindromic prime numbers, by Victor Merlin (@merlinmundo). More on the famous Belphegor's prime number is here: https://t.co/PCw03CQ2nl and https://t.co/6zbmpSnffI ... Cliff Pickover on Twitter: ""Belphegor´s Eye" haunts mathematicians. Constructed with palindromic prime numbers, by Victor Merlin (@merlinmundo). More on the famous Belphegor's prime number is here: https://t.co/PCw03CQ2nl and https://t.co/6zbmpSnffI ...](https://pbs.twimg.com/media/ErYDHc7XYAEKdUv.jpg:large)
Cliff Pickover on Twitter: ""Belphegor´s Eye" haunts mathematicians. Constructed with palindromic prime numbers, by Victor Merlin (@merlinmundo). More on the famous Belphegor's prime number is here: https://t.co/PCw03CQ2nl and https://t.co/6zbmpSnffI ...
![Curiosity on Twitter: "The is Belphegor's Prime, also known as the prime number of the beast. https://t.co/tjPpgyJoOf @numberphile #mathchat https://t.co/RWoTHFzAdy" / Twitter Curiosity on Twitter: "The is Belphegor's Prime, also known as the prime number of the beast. https://t.co/tjPpgyJoOf @numberphile #mathchat https://t.co/RWoTHFzAdy" / Twitter](https://pbs.twimg.com/media/CujkbrBUIAEI1eq.jpg)