727777

Properties

Appears in sequences

• Primes that contain digits 2 and 7 only.at n=16A020459
• Smallest prime containing exactly n 7's.at n=5A037067
• Primes with 20 as smallest positive primitive root.at n=10A061332
• Near-repdigit primes with 7 as repeated digit.at n=31A105977
• a(n) is the n-th prime of the form n*x^2+1.at n=13A128970
• Smallest n-digit prime having at least n-1 digits equal to 7.at n=5A268705
• Array read by rows: T(n,k) is the first prime with exactly n occurrences of decimal digit k.at n=57A375760
• Prime numbers that yield a sphenic number when any digit is removed.at n=9A378863
• Prime numbersat n=58623