Compare 666431 vs 667081

Property	666431	667081
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666431¹	667081¹
Prime factorization	666431	667081
Divisors count	2	2
Divisors	1, 666431	1, 667081
Number of properties	10	5
Chen primes	21134th	21150th
Cousin primes (2nd member)	5828th
Isolated primes		42420th
Lucky primes		6188th
Primes	54051st	54099th
Prime quadruplets (1st member)	130th
Prime quintuplet 1s (2nd member)	26th
Prime triplets (1st member)	2128th
Prime triplets (2nd member)	2127th
Sexy primes (1st member)	11664th
Twin primes (1st member)	5833rd
Ulam primes	3969th	3972nd
Roman numberals
Base 2	10100010101100111111₂	10100010110111001001₂
Base 3	1020212011122₃	1020220001201₃
Base 4	2202230333₄	2202313021₄
Base 5	132311211₅	132321311₅
Base 6	22141155₆	22144201₆
Base 7	5443643₇	5445562₇
Base 8	2425477₈	2426711₈
Base 9	1225148₉	1226051₉
Base 10	666431₁₀	667081₁₀
Base 11	415777₁₁	416208₁₁
Base 12	2817bb₁₂	282061₁₂
Base 13	1a444c₁₃	1a482c₁₃
Base 14	134c23₁₄	135169₁₄
Base 15	d26db₁₅	d29c1₁₅
Base 16	a2b3f₁₆	a2dc9₁₆