1. Numbers
  2. Compare 109 vs 121

Compare 109 vs 121

Property109121
Typeprimesemiprime
Unique factors11
Total factors12
Prime factorization1091112
Prime factorization10911 × 11
Divisors count23
Divisors1, 1091, 11, 121
Number of properties191
Centered triangular primes3rd 
Chen primes23rd 
Cousin primes (1st member)11th 
Cuban primes 22nd 
Happy primes9th 
Long primes10th 
Pierpont primes11th 
Primes29th 
Prime quadruplets (4th member)3rd 
Prime quintuplet 1s (5th member)2nd 
Prime quintuplet 2s (4th member)3rd 
Prime sextuplets (5th member)2nd 
Prime triplets (2nd member)12th 
Prime triplets (3rd member)11th 
Pythagorean primes13th 
Semiprimes 40th
Sexy primes (2nd member)18th 
Sexy prime triplets (3rd member)10th 
Super primes10th 
Twin primes (2nd member)10th 
Roman numberalsCIXCXXI
Base 21101101211110012
Base 3110013111113
Base 41231413214
Base 541454415
Base 630163216
Base 721472327
Base 815581718
Base 913191449
Base 101091012110
Base 119a1110011
Base 129112a112
Base 1385139413
Base 147b148914
Base 1574158115
Base 166d167916
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