Uploaded February 2022 | Updated September 2026, 2 weeks ago
Indian recreational math genius D.R. Kaprekar has a set of numbers named after him, and a Kaprekar number occurs when you square that number, then add up the resulting digits to the original number. So, 55 is Kaprekar because squaring it gives you 3,025, and 30 + 25 = 55. You'd think that most Kaprekars are small, but... no. And even 1,111,111,111 is Kaprekar.
BUT WHERE'S THE 8?
#shorts #education #vsauce
Indian recreational math genius D.R. Kaprekar has a set of numbers named after him, and a Kaprekar number occurs when you square that number, then add up the resulting digits to the original number. So, 55 is Kaprekar because squaring it gives you 3,025, and 30 + 25 = 55. You'd think that most Kaprekars are small, but... no. And even 1,111,111,111 is Kaprekar.
BUT WHERE'S THE 8?
#shorts #education #vsauce
