Compare 664121 vs 664199

Property	664121	664199
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664121¹	664199¹
Prime factorization	664121	664199
Divisors count	2	2
Divisors	1, 664121	1, 664199
Number of properties	6	5
Chen primes	21072nd	21074th
Cousin primes (2nd member)	5810th
Happy primes	7639th
Isolated primes		42252nd
Primes	53878th	53885th
Prime triplets (2nd member)	2119th
Safe primes		3110th
Sexy primes (2nd member)		11632nd
Twin primes (1st member)	5817th
Roman numberals
Base 2	10100010001000111001₂	10100010001010000111₂
Base 3	1020202000002₃	1020202002222₃
Base 4	2202020321₄	2202022013₄
Base 5	132222441₅	132223244₅
Base 6	22122345₆	22122555₆
Base 7	5434133₇	5434304₇
Base 8	2421071₈	2421207₈
Base 9	1222002₉	1222088₉
Base 10	664121₁₀	664199₁₀
Base 11	413a67₁₁	414028₁₁
Base 12	2803b5₁₂	28045b₁₂
Base 13	1a3393₁₃	1a3423₁₃
Base 14	134053₁₄	1340ab₁₄
Base 15	d1b9b₁₅	d1bee₁₅
Base 16	a2239₁₆	a2287₁₆