Compare 664667 vs 665921

Property	664667	665921
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	664667¹	665921¹
Prime factorization	664667	665921
Divisors count	2	2
Divisors	1, 664667	1, 665921
Number of properties	8	4
Additive primes		21085th
Chen primes	21091st	21123rd
Cousin primes (2nd member)	5813th
Primes	53922nd	54016th
Prime quadruplets (3rd member)	129th
Prime triplets (2nd member)	2121st
Prime triplets (3rd member)	2120th
Sexy primes (2nd member)	11637th
Twin primes (1st member)	5822nd	5830th
Roman numberals
Base 2	10100010010001011011₂	10100010100101000001₂
Base 3	1020202202022₃	1020211110202₃
Base 4	2202101123₄	2202211001₄
Base 5	132232132₅	132302141₅
Base 6	22125055₆	22134545₆
Base 7	5435543₇	5442314₇
Base 8	2422133₈	2424501₈
Base 9	1222668₉	1224422₉
Base 10	664667₁₀	665921₁₀
Base 11	414413₁₁	415353₁₁
Base 12	28078b₁₂	281455₁₂
Base 13	1a36c3₁₃	1a4149₁₃
Base 14	134323₁₄	13497b₁₄
Base 15	d1e12₁₅	d249b₁₅
Base 16	a245b₁₆	a2941₁₆