Compare 997 vs 1997

Property	997	1997
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	997¹	1997¹
Prime factorization	997	1997
Divisors count	2	2
Divisors	1, 997	1, 1997
Number of properties	6	10
Chen primes		185th
Cousin primes (2nd member)		64th
Good primes		64th
Isolated primes	99th
Left-truncatable primes	54th	62nd
Lucky primes	43rd
Primes	168th	302nd
Prime triplets (1st member)		50th
Prime triplets (2nd member)		49th
Pythagorean primes	80th	147th
Sexy primes (1st member)		129th
Sexy primes (2nd member)	74th
Twin primes (1st member)		61st
Roman numberals	CMXCVII	MCMXCVII
Base 2	1111100101₂	11111001101₂
Base 3	1100221₃	2201222₃
Base 4	33211₄	133031₄
Base 5	12442₅	30442₅
Base 6	4341₆	13125₆
Base 7	2623₇	5552₇
Base 8	1745₈	3715₈
Base 9	1327₉	2658₉
Base 10	997₁₀	1997₁₀
Base 11	827₁₁	1556₁₁
Base 12	6b1₁₂	11a5₁₂
Base 13	5b9₁₃	ba8₁₃
Base 14	513₁₄	a29₁₄
Base 15	467₁₅	8d2₁₅
Base 16	3e5₁₆	7cd₁₆