Compare 664691 vs 666431

Property	664691	666431
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664691¹	666431¹
Prime factorization	664691	666431
Divisors count	2	2
Divisors	1, 664691	1, 666431
Number of properties	5	10
Chen primes	21093rd	21134th
Cousin primes (2nd member)	5814th	5828th
Primes	53926th	54051st
Prime quadruplets (1st member)		130th
Prime quintuplet 1s (2nd member)		26th
Prime triplets (1st member)		2128th
Prime triplets (2nd member)	2122nd	2127th
Sexy primes (1st member)		11664th
Twin primes (1st member)	5823rd	5833rd
Ulam primes		3969th
Roman numberals
Base 2	10100010010001110011₂	10100010101100111111₂
Base 3	1020202210012₃	1020212011122₃
Base 4	2202101303₄	2202230333₄
Base 5	132232231₅	132311211₅
Base 6	22125135₆	22141155₆
Base 7	5435606₇	5443643₇
Base 8	2422163₈	2425477₈
Base 9	1222705₉	1225148₉
Base 10	664691₁₀	666431₁₀
Base 11	414435₁₁	415777₁₁
Base 12	2807ab₁₂	2817bb₁₂
Base 13	1a3711₁₃	1a444c₁₃
Base 14	13433d₁₄	134c23₁₄
Base 15	d1e2b₁₅	d26db₁₅
Base 16	a2473₁₆	a2b3f₁₆