Compare 666667 vs 666671

Property	666667	666671
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666667¹	666671¹
Prime factorization	666667	666671
Divisors count	2	2
Divisors	1, 666667	1, 666671
Number of properties	5	4
Additive primes	21106th
Chen primes		21140th
Cousin primes (1st member)	5831st
Cousin primes (2nd member)		5831st
Isolated primes	42397th	42398th
Lucky primes	6184th
Primes	54070th	54071st
Roman numberals
Base 2	10100010110000101011₂	10100010110000101111₂
Base 3	1020212111101₃	1020212111112₃
Base 4	2202300223₄	2202300233₄
Base 5	132313132₅	132313141₅
Base 6	22142231₆	22142235₆
Base 7	5444431₇	5444435₇
Base 8	2426053₈	2426057₈
Base 9	1225441₉	1225445₉
Base 10	666667₁₀	666671₁₀
Base 11	415971₁₁	415975₁₁
Base 12	281977₁₂	28197b₁₂
Base 13	1a45a1₁₃	1a45a5₁₃
Base 14	134d51₁₄	134d55₁₄
Base 15	d27e7₁₅	d27eb₁₅
Base 16	a2c2b₁₆	a2c2f₁₆