Compare 664199 vs 666647

Property	664199	666647
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664199¹	666647¹
Prime factorization	664199	666647
Divisors count	2	2
Divisors	1, 664199	1, 666647
Number of properties	5	6
Chen primes	21074th	21139th
Cousin primes (2nd member)		5830th
Isolated primes	42252nd
Primes	53885th	54068th
Prime triplets (2nd member)		2130th
Safe primes	3110th	3122nd
Sexy primes (2nd member)	11632nd
Twin primes (1st member)		5837th
Roman numberals
Base 2	10100010001010000111₂	10100010110000010111₂
Base 3	1020202002222₃	1020212110122₃
Base 4	2202022013₄	2202300113₄
Base 5	132223244₅	132313042₅
Base 6	22122555₆	22142155₆
Base 7	5434304₇	5444402₇
Base 8	2421207₈	2426027₈
Base 9	1222088₉	1225418₉
Base 10	664199₁₀	666647₁₀
Base 11	414028₁₁	415953₁₁
Base 12	28045b₁₂	28195b₁₂
Base 13	1a3423₁₃	1a4587₁₃
Base 14	1340ab₁₄	134d39₁₄
Base 15	d1bee₁₅	d27d2₁₅
Base 16	a2287₁₆	a2c17₁₆