The Uncracked Problem with 33
Update March 2019: 8866128975287528^3+(-8778405442862239)^3+(-2736111468807040)^3
33 is the lowest unsolved problem in the world of "summing three cubes". But 30 was also a tough nut to crack!
Featuring Tim Browning from the University of Bristol.
Taxi Cab Numbers: https://youtu.be/LzjaDKVC4iY
Fermat's Last Theorem: https://youtu.be/qiNcEguuFSA