1. Numbers
  2. Compare 1318 vs 1321

Compare 1318 vs 1321

Property13181321
Typesemiprimeprime
Unique factors21
Total factors21
Prime factorization21 × 659113211
Prime factorization2 × 6591321
Divisors count42
Divisors1, 2, 659, 13181, 1321
Number of properties17
Additive primes 118th
Emirps 63rd
Harmonic primes 74th
Primes 216th
Pythagorean primes 106th
Semiprimes387th 
Sexy primes (1st member) 94th
Twin primes (2nd member) 46th
Roman numberalsMCCCXVIIIMCCCXXI
Base 2101001001102101001010012
Base 31210211312102213
Base 411021241102214
Base 5202335202415
Base 6100346100416
Base 73562735657
Base 82446824518
Base 91724917279
Base 10131810132110
Base 11a9911aa111
Base 1291a1292112
Base 137a5137a813
Base 146a2146a514
Base 155cd155d115
Base 165261652916
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