27127

Properties

Appears in sequences

• Largest prime == 7 (mod 8) with class number 2n+1.at n=24A002147
• Smallest prime > 2n+1 beginning and ending with 2n+1, or 0 if no such prime exists.at n=13A070278
• Smallest prime beginning and ending in 2n+1 or 0 if no such prime exists.at n=13A071234
• Take A000040, omit commas: 23571113171923..., select 5-digit primes seen when scanning from left.at n=27A073038
• Primes in which the digit string can be partitioned into three parts such that third (least significant) part is the product of the first two.at n=18A088294
• Largest of six consecutive primes the sum of the digits of each of which is prime.at n=19A106720
• Largest of seven consecutive primes whose sum of digits is prime.at n=8A106721
• Primes p such that their cubes are pandigital.at n=29A124629
• Primes of the form XYX, where Y is a single digit.at n=33A154270
• Least prime of three consecutive primes (p1,p2,p3) such that p2-p1 and p3-p2 are both perfect squares.at n=4A161002
• Primes of the form abcabc..abcab.at n=18A228627
• Number of length 3+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=21A250168
• Primes p such that p+1 is the concatenation of a power of 3 and a power of 2.at n=21A354524
• Primes p such that if q is the next prime, (p+q)/6 is a triangular number.at n=39A356293
• Concatenations x||1||x for numbers x.at n=26A392225
• Primes that are the concatenation of x, 1 and x for some x.at n=4A392227
• Prime numbersat n=2975