421
82ΤΪΜ
f
43ΤΪΜ
oqf
tΜzΒί
: 140
20ΤΪΜ
Eulerf(n = 19)
40ΤΪΜ
4n+1^Μf
( 421 = 15
2
+ 14
2
)
ΜfάΕΜ·
Ν10
8i\L(645)
8
16i\L(1A5)
16
39ΤΪΜ
3n+1^Μf
( 421 = 11
2
+ 3~10
2
)
8ΤΪΜ
20n+1^Μf
( 421 = 4
2
+ 5~9
2
)
23ΤΪΜ
ρ³₯f