Number Theorist Cannot Remember His Own Phone Number, Cites It As Uninteresting

A world-renowned number theorist has admitted that he cannot remember his own phone number, explaining that the ten-digit sequence contains no properties sufficiently interesting to aid memorization. Dr. Bertrand Sieve, 61, a professor at Princeton whose work on the distribution of twin primes has been cited over four thousand times, says he has been unable to commit his mobile number to memory since acquiring it in 2019. "It's 609-something," Sieve offered when asked. "The area code I know because it's the product of 3, 7, and 29, which is mildly pleasing. The remaining seven digits are compositionally unremarkable. No palindromes, no repunits, no Fibonacci subsequences. There isn't even a prime in a satisfying position." Sieve can, by contrast, recite the first two hundred digits of pi, the first fifty Mersenne primes, and the complete factorization of every number up to ten thousand. "Those numbers earned their place in my memory," Sieve explained. "My phone number is an arbitrary assignment by a telecommunications company. It has done nothing to distinguish itself." Sieve's wife, Dr. Helen Sieve, a professor of English literature, reports that she has written his phone number on a card in his wallet, taped it to his office door, and programmed it into his own phone under the contact name "YOU." He has lost two of the three cards. "He once called me to ask for his own number," Helen confirmed. "I asked him how he dialed me if he doesn't know numbers. He said he remembers mine because it contains a twin prime pair in positions four and five. I have never felt more romantically appreciated." Sieve has proposed to his carrier that they reassign him a number containing at least one Sophie Germain prime. The carrier has not responded.