Compare 666139 vs 666143

Property	666139	666143
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666139¹	666143¹
Prime factorization	666139	666143
Divisors count	2	2
Divisors	1, 666139	1, 666143
Number of properties	4	4
Additive primes	21093rd
Cousin primes (1st member)	5825th
Cousin primes (2nd member)		5825th
Isolated primes	42372nd	42373rd
Primes	54035th	54036th
Safe primes		3118th
Roman numberals
Base 2	10100010101000011011₂	10100010101000011111₂
Base 3	1020211202211₃	1020211202222₃
Base 4	2202220123₄	2202220133₄
Base 5	132304024₅	132304033₅
Base 6	22135551₆	22135555₆
Base 7	5443045₇	5443052₇
Base 8	2425033₈	2425037₈
Base 9	1224684₉	1224688₉
Base 10	666139₁₀	666143₁₀
Base 11	415531₁₁	415535₁₁
Base 12	2815b7₁₂	2815bb₁₂
Base 13	1a4286₁₃	1a428a₁₃
Base 14	134a95₁₄	134a99₁₄
Base 15	d2594₁₅	d2598₁₅
Base 16	a2a1b₁₆	a2a1f₁₆