Compare 17 vs 26

Unique factors12
Total factors12
Prime factorization17121 × 131
Prime factorization172 × 13
Divisors count24
Divisors1, 171, 2, 13, 26
Number of properties361
Chen primes7th 
Class 1+ primes6th 
Cousin primes (2nd member)3rd 
Fermat primes3rd 
Genocchi primes1st 
Good primes3rd 
Harmonic primes3rd 
Left-truncatable primes6th 
Leyland primes2nd 
Long primes2nd 
Multiplicative primes6th 
Pierpont primes6th 
Pierpont primes of the 2nd kind6th 
Prime quadruplets (3rd member)2nd 
Prime quintuplet 1s (4th member)1st 
Prime quintuplet 2s (3rd member)2nd 
Prime quintuplet 2s (5th member)1st 
Prime sextuplets (4th member)1st 
Prime triplets (1st member)5th 
Prime triplets (2nd member)4th 
Prime triplets (3rd member)3rd 
Proth primes4th 
Pythagorean primes3rd 
Quartan primes2nd 
Semiprimes 10th
Sexy primes (1st member)5th 
Sexy primes (2nd member)3rd 
Sexy prime quadrupletss (2nd member)2nd 
Sexy prime quadrupletss (3rd member)1st 
Sexy prime triplets (1st member)4th 
Sexy prime triplets (2nd member)3rd 
Sexy prime triplets (3rd member)1st 
Solinas primes6th 
Super primes4th 
Twin primes (1st member)4th 
Roman numberalsXVIIXXVI
Base 2100012110102
Base 312232223
Base 410141224
Base 53251015
Base 6256426
Base 7237357
Base 8218328
Base 9189289
Base 1017102610
Base 1116112411
Base 1215122212
Base 1314132013
Base 1413141c14
Base 1512151b15
Base 1611161a16
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