1. Numbers
  2. Compare 661 vs 1361

Compare 661 vs 1361

Property6611361
Typeprimeprime
Unique factors11
Total factors11
Prime factorization661113611
Prime factorization6611361
Divisors count22
Divisors1, 6611, 1361
Number of properties59
Additive primes65th120th
Centered decagonal primes8th12th
Chen primes 142nd
Isolated primes 127th
Mills primes 3rd
Primes121st218th
Pythagorean primes57th107th
Sexy primes (1st member) 95th
Sexy prime triplets (1st member) 36th
Twin primes (2nd member)30th 
Roman numberalsDCLXIMCCCLXI
Base 210100101012101010100012
Base 3220111312121023
Base 42211141111014
Base 5101215204215
Base 630216101456
Base 71633736537
Base 81225825218
Base 9814917729
Base 1066110136110
Base 1155111102811
Base 124711295512
Base 133bb1380913
Base 14353146d314
Base 152e11560b15
Base 162951655116
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