56443

Properties

Appears in sequences

• Numbers k such that 135*2^k-1 is prime.at n=30A050593
• Smaller of two consecutive primes whose sum is a square.at n=22A061275
• Lesser of consecutive primes whose sum is a perfect power (A001597).at n=28A091624
• Least prime P1 of 8 different primes: 4 consecutive primes P1 P2 P3 P4 and 4 primes Q1 Q2 Q3 Q4 such that Q1 with same digits than P1 if not 6 or 9, if 6 then replace with 9 and if 9 then replace with 6, same for Q2 from P2 Q3 from P3 and Q4 from P4.at n=4A122713
• Primes of the form 2n^2 - 5.at n=23A201713
• Primes of the form 8n^2 - 5.at n=13A201857
• Primes p such that p^4 - p +/- 1 are twin primes.at n=25A236952
• Numbers k such that 33*10^k + 1 is prime.at n=29A271107
• Prime powers that are equal to the sum of the first k prime powers (not including 1) for some k.at n=26A364797
• Prime numbersat n=5722