Jawabanmu

2014-03-10T15:55:58+07:00
Rumus bilangan prima s=suku s1=2 s2=3 s3=5 s4=7 s5=11 s6=13 s7=17 s8=19 s9=23 s10=29 s11=31 s12=37 s13=41 s14=43 s15=47 s16=51 s17=53 s18=57 s19=59 s20=61 jadi jumlah suku 20 pertama adalah = s1+s2+s3.....+s20 = 579