1. Numbers
  2. Compare 997 vs 1291

Compare 997 vs 1291

Property9971291
Typeprimeprime
Unique factors11
Total factors11
Prime factorization997112911
Prime factorization9971291
Divisors count22
Divisors1, 9971, 1291
Number of properties69
Additive primes 113th
Chen primes 137th
Harmonic primes 73rd
Isolated primes99th 
Left-truncatable primes54th 
Long primes 80th
Lucky primes43rd54th
Primes168th210th
Pythagorean primes80th 
Sexy primes (1st member) 91st
Sexy primes (2nd member)74th 
Sexy prime triplets (1st member) 35th
Twin primes (2nd member) 44th
Roman numberalsCMXCVIIMCCXCI
Base 211111001012101000010112
Base 31100221312022113
Base 43321141100234
Base 5124425201315
Base 64341655516
Base 72623735237
Base 81745824138
Base 91327916849
Base 1099710129110
Base 1182711a7411
Base 126b1128b712
Base 135b91378413
Base 145131468314
Base 15467155b115
Base 163e51650b16
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