77213

Properties

Appears in sequences

• Number of distinct factorizations of 105*2^n.at n=20A093802
• Smallest prime in kx^3+x+4 is prime.at n=28A114368
• Numbers k such that (14^k - 5^k)/9 is prime.at n=6A128350
• Prime p3 of the sequence A164063: a^b - c^d = p1 (A164063), where a, b, c, d are primes and a + b + c + d = p2 (A164064), where p2 is prime and conc(abcd) = p3 (concatenation of a, b, c , d) is also prime.at n=6A164065
• Greatest number (in decimal representation) with n nonprime substrings in base-5 representation (substrings with leading zeros are considered to be nonprime).at n=13A217115
• Primes p with P(p-1) also prime, where P(.) is the partition function (A000041).at n=29A234569
• Prime numbersat n=7585