72229

Properties

Appears in sequences

• Twin primes belonging to packs of four or more twin pairs.at n=19A068220
• Last term of prime quadruples.at n=30A090258
• Start with 1 and repeatedly reverse the digits and add 42 to get the next term.at n=38A118075
• Prime numbers containing the string 222.at n=18A166580
• a(n) = 3*a(n-1) + 4*a(n-2) + a(n-3) with a(0)=3, a(1)=3, a(2)=17.at n=8A215076
• Prime in the middle of a list of 7 consecutive primes such that each of them is a member of a twin pair.at n=5A227063
• Prime(k) such that each of the three preceding and also each of the three following primes are twin primes.at n=8A227323
• Primes having only {2, 7, 9} as digits.at n=39A261182
• Prime numbersat n=7150