Compare 9 vs 17

Property	9	17
Type	semiprime	prime
Unique factors	1	1
Total factors	2	1
Prime factorization	3²	17¹
Prime factorization	3 × 3	17
Divisors count	3	2
Divisors	1, 3, 9	1, 17
Number of properties	1	36
Chen primes		7th
Class 1+ primes		6th
Cousin primes (2nd member)		3rd
Emirps		2nd
Fermat primes		3rd
Genocchi primes		1st
Good primes		3rd
Harmonic primes		3rd
Left-truncatable primes		6th
Leyland primes		2nd
Long primes		2nd
Multiplicative primes		6th
Pierpont primes		6th
Pierpont primes of the 2nd kind		6th
Primes		7th
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 primes		4th
Pythagorean primes		3rd
Quartan primes		2nd
Semiprimes	3rd
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 primes		6th
Super primes		4th
Twin primes (1st member)		4th
Roman numberals	IX	XVII
Base 2	1001₂	10001₂
Base 3	100₃	122₃
Base 4	21₄	101₄
Base 5	14₅	32₅
Base 6	13₆	25₆
Base 7	12₇	23₇
Base 8	11₈	21₈
Base 9	10₉	18₉
Base 10	9₁₀	17₁₀
Base 11	9₁₁	16₁₁
Base 12	9₁₂	15₁₂
Base 13	9₁₃	14₁₃
Base 14	9₁₄	13₁₄
Base 15	9₁₅	12₁₅
Base 16	9₁₆	11₁₆