1. Numbers
  2. Compare 197 vs 257

Compare 197 vs 257

Property197257
Typeprimeprime
Unique factors11
Total factors11
Prime factorization19712571
Prime factorization197257
Divisors count22
Divisors1, 1971, 257
Number of properties1316
Additive primes26th 
Centered heptagonal primes3rd 
Chen primes35th42nd
Cousin primes (2nd member)14th 
Fermat primes 4th
Good primes 20th
Isolated primes 22nd
Left-truncatable primes20th 
Long primes 21st
Pierpont primes 14th
Primes45th55th
Prime quadruplets (3rd member)4th 
Prime triplets (2nd member)14th 
Prime triplets (3rd member)13th 
Proth primes 10th
Pythagorean primes21st25th
Quartan primes 4th
Sexy primes (1st member) 31st
Sexy primes (2nd member)25th30th
Sexy prime quadrupletss (2nd member) 5th
Sexy prime triplets (1st member) 16th
Sexy prime triplets (2nd member) 15th
Solinas primes 31st
Twin primes (1st member)15th 
Ulam primes9th 
Roman numberalsCXCVIICCLVII
Base 21100010121000000012
Base 32102231001123
Base 430114100014
Base 51242520125
Base 6525611056
Base 740175157
Base 830584018
Base 923893159
Base 101971025710
Base 1116a1121411
Base 121451219512
Base 131221316a13
Base 141011414514
Base 15d21512215
Base 16c51610116
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