22 juni 2026
26 min
In this episode, we step into the elegant world of number theory to unlock the strange math of "perfect numbers", integers that equal the exact sum of their own proper divisors.
We trace this pursuit from the ancient Greek geometers who could only ever find four examples (6, 28, 496, and 8,128), through the early theologians who wove them into creation myths, to the mathematical masters who turned their mystery into formulas.
We walk through the beautiful architecture of divisors using the sigma function to explore a stunning cosmic connection.
Over two millennia ago, Euclid discovered that perfect numbers share a flawless one-to-one correspondence with a rare breed of gems called Mersenne primes, numbers that take the form 2𝑝−1.
We outline how eighteenth-century genius Leonhard Euler sealed this relationship forever with the Euclid-Euler Theorem, leaving number theory with a glittering, packaged formula for even numbers, but a completely unresolved, two-thousand-year-old cliffhanger: Do any odd perfect numbers actually exist?
Lyssna på fler avsnitt från
Million Dollar Problems of Mathematics
Visar 1–10 av 28 avsnitt
6 juli 2026
16 min
29 juni 2026
17 min
18 maj 2026
26 min
11 maj 2026
23 min
4 maj 2026
15 min
27 april 2026
13 min
20 april 2026
19 min
13 april 2026
22 min
6 april 2026
14 min
30 mars 2026
16 min