1. Numbers
  2. Compare 79 vs 81

Compare 79 vs 81

Property7981
Typeprimecomposite number
Unique factors11
Total factors14
Prime factorization79134
Prime factorization793 × 3 × 3 × 3
Divisors count25
Divisors1, 791, 3, 9, 27, 81
Number of properties130
Cousin primes (1st member)8th 
Emirps7th 
Happy primes6th 
Harmonic primes8th 
Isolated primes7th 
Kynea primes4th 
Lucky primes9th 
Primes22nd 
Right-truncatable primes13th 
Sexy primes (2nd member)14th 
Sexy prime quadrupletss (4th member)4th 
Sexy prime triplets (3rd member)9th 
Solinas primes19th 
Roman numberalsLXXIXLXXXI
Base 21001111210100012
Base 322213100003
Base 41033411014
Base 530453115
Base 621162136
Base 714271447
Base 811781218
Base 98791009
Base 1079108110
Base 1172117411
Base 1267126912
Base 1361136313
Base 1459145b14
Base 1554155615
Base 164f165116
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