1. Numbers
  2. Compare 97 vs 991

Compare 97 vs 991

Property97991
Typeprimeprime
Unique factors11
Total factors11
Prime factorization9719911
Prime factorization97991
Divisors count22
Divisors1, 971, 991
Number of properties2010
Additive primes 89th
Chen primes 115th
Cousin primes (1st member)9th 
Emirps8th36th
Good primes11th 
Happy primes7th 
Isolated primes10th98th
Left-truncatable primes15th 
Long primes9th 
Lucky primes 42nd
Pierpont primes10th 
Primes25th167th
Prime quintuplet 1s (1st member)2nd 
Prime sextuplets (1st member)2nd 
Prime triplets (1st member)9th 
Proth primes6th 
Pythagorean primes11th 
Quartan primes3rd 
Sexy primes (1st member)16th74th
Sexy prime triplets (1st member)10th 
Solinas primes20th43rd
Super primes 39th
Thabit primes of the 2nd kind3rd 
Ulam primes7th18th
Roman numberalsXCVIICMXCI
Base 21100001211110111112
Base 310121311002013
Base 412014331334
Base 53425124315
Base 6241643316
Base 7166726147
Base 8141817378
Base 9117913219
Base 10971099110
Base 11891182111
Base 1281126a712
Base 1376135b313
Base 146d1450b14
Base 15671546115
Base 1661163df16
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