In the 1980s, Samuel Yates defined a titanic prime to be a prime number of at least 1000 decimal digits. The smallest titanic prime is . As of 1990, more than 1400 were known (Ribenboim
1990). By 1995, more than
were known, and many tens of thousands are known today. The largest known prime
number as of October 2024 is the Mersenne prime, which has a whopping
decimal digits.
The first few titanic primes are for , 663, 2121, 2593, 3561, 4717, 5863, 9459, 11239, ... (OEIS
A074282).
. As of 1990, more than 1400 were known (Ribenboim
1990). By 1995, more than 
were known, and many tens of thousands are known today. The largest known prime
number as of October 2024 is the Mersenne prime 
, which has a whopping
decimal digits.
for 
, 663, 2121, 2593, 3561, 4717, 5863, 9459, 11239, ... (OEIS
A074282).
