![(Reitaisai 12) [Nuigurumiya-san (Various)] Reimu-chan ga Minna ni Shiboritorareru Hon Itsukame (Touhou Project)](https://t1.nhentai.net/galleries/1534874/cover.jpg)
(Reitaisai 12) [Nuigurumiya-san (Various)] Reimu-chan ga Minna ni Shiboritorareru Hon Itsukame (Touhou Project)
(例大祭 12) [ぬいぐるみやさん (よろず)] 霊夢ちゃんがみんなに搾り取られる本 五日目 (東方Project)
#294001
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ike-monsuta
294001 is the smallest digitally delicate prime (in base 10). Changing any of its digits will make it a composite number.
sources:
https://www.youtube.com/watch?v=p3Khnx0lUDE
oeis.org/search?q=294001&sort=&language=english&go=Search