845404559
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Lesser of twin primes p >= 3 for which sigma(p+1)/sigma(p-1) reaches record value, where sigma(n) is the divisor sum function (A000203).at n=15A326391
- Lesser of twin primes p for which sigma(p+1)/sigma(p) reaches record value, where sigma(n) is the divisor sum function (A000203).at n=30A326392
- Prime numbersat n=43358368