Compare 640307 vs 640421

Property	640307	640421
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640307¹	640421¹
Prime factorization	640307	640421
Divisors count	2	2
Divisors	1, 640307	1, 640421
Number of properties	5	3
Additive primes		20365th
Chen primes	20390th
Cousin primes (2nd member)	5634th
Isolated primes	40833rd	40838th
Primes	52104th	52109th
Safe primes	3019th
Roman numberals
Base 2	10011100010100110011₂	10011100010110100101₂
Base 3	1012112100002₃	1012112111022₃
Base 4	2130110303₄	2130112211₄
Base 5	130442212₅	130443141₅
Base 6	21420215₆	21420525₆
Base 7	5304533₇	5305055₇
Base 8	2342463₈	2342645₈
Base 9	1175302₉	1175438₉
Base 10	640307₁₀	640421₁₀
Base 11	3a8088₁₁	3a8181₁₁
Base 12	26a66b₁₂	26a745₁₂
Base 13	1955a5₁₃	195662₁₃
Base 14	1294c3₁₄	129565₁₄
Base 15	c9ac2₁₅	c9b4b₁₅
Base 16	9c533₁₆	9c5a5₁₆