78157

Properties

Appears in sequences

• Primes p such that the differences between the 5 consecutive primes starting with p are (6,4,6,6).at n=13A078964
• Prime p of the form a^b + c^d = p, where a, b, c, d are also primes.at n=38A164074
• Prime p1 of the form a^b + c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164076) is also prime.at n=21A164075
• Prime p1 of the form a^b + c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164078) is prime and conc(abcd) = p3 (concatenation of a, b, c , d) is also prime (A164079).at n=2A164077
• Primes of the form 5^x + y^5 with x, y > 0.at n=5A250842
• Numbers z such that x^2 + y^7 = z^2 (with positive integers x and y) and gcd(x, y, z) = 1.at n=8A293693
• Primes formed by concatenating k and 2k+1.at n=28A309808
• a(n) = Sum_{p|n, p prime} p^sopf(n/p).at n=49A369912
• Primes such that moving the last digit to the front produces a triangular number.at n=22A384954
• Prime numbersat n=7674