5363222357

Appears in sequences

• Largest prime factor of the "repunit" number 11...1 (cf. A002275).at n=15A003020
• Largest prime factor of 10^n - 1.at n=16A005422
• Triangle of prime numbers in which n-th row lists all primes p such that 1/p has decimal period n, n >= 1.at n=26A046107
• Greatest prime number p(n) with decimal fraction period of length n.at n=16A061075
• Divisors of 10^17 - 1.at n=6A113116
• Largest prime factor of prime(n)-th repunit number.at n=6A147556
• Second smallest distinct prime factor of repunit(n) = (10^n-1)/9 (A002275), zero if repunit is prime.at n=15A176973
• Sorted version of A061075.at n=28A181086
• Irregular triangle read by rows in which row n lists primitive prime factors of the repunit (10^n - 1)/9 (A002275(n)).at n=27A204845
• Powers of primes other than 2 and 5 in order by cycle length of reciprocal in decimal.at n=29A227969
• Records in A054471.at n=36A243110