1. Numbers
  2. Compare 1277 vs 1285

Compare 1277 vs 1285

Property12771285
Typeprimesemiprime
Unique factors12
Total factors12
Prime factorization1277151 × 2571
Prime factorization12775 × 257
Divisors count24
Divisors1, 12771, 5, 257, 1285
Number of properties101
Additive primes111th 
Chen primes134th 
Good primes50th 
Happy primes41st 
Primes206th 
Prime triplets (1st member)33rd 
Pythagorean primes102nd 
Semiprimes 378th
Sexy primes (1st member)89th 
Sexy prime triplets (1st member)34th 
Twin primes (1st member)43rd 
Roman numberalsMCCLXXVIIMCCLXXXV
Base 2100111111012101000001012
Base 31202022312021213
Base 410333141100114
Base 5201025201205
Base 65525655416
Base 73503735147
Base 82375824058
Base 91668916779
Base 10127710128510
Base 11a6111a6911
Base 128a5128b112
Base 137731377b13
Base 146731467b14
Base 155a2155aa15
Base 164fd1650516
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