124769

Properties

Appears in sequences

• Smallest prime factor of n!-1 (for n>2), a(2)=1.at n=18A054415
• Primes p such that p+2, 2p+1, and 2p+3 are also prime.at n=31A069142
• Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,4,2).at n=20A078948
• Smaller of the two factors of the n-th semiprime number of the form m!-1.at n=5A080802
• Beginning with 3, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=25A113584
• Numbers n such that n is a twin prime and 2n + 1 is a twin prime.at n=32A261463
• Primes of the form p(q) + p(r) with q and r both prime, where p(.) is the partition function given by A000041.at n=12A261515
• Primes of the form 11*k^2-11*k+7.at n=43A267290
• For a lesser p of twin primes, let B_(p+2) and B_p be sequences defined as A159559, but with initial terms p+2 and p respectively. The sequence lists p for which all differences B_(p+2)(n)-B_p(n)<=6.at n=41A276848
• Prime numbersat n=11715