IT BECAUSE PN 3 HAS REAL NUMBER: 21st = 114.347...577216 = 1.143×10⁵⁸³⁴. 22nd = 59.8885...496576 = 59.88×10⁵⁹⁸⁵. 23rd = 3.959×10⁶⁷⁵¹(bc to long). 24th = 9.31×10¹²⁰⁰³ blah blah blah so that's all here link https://www.geeksforgeeks.org/maths/perfect-numbers/