【正文】 13 (14)*(513)=241,4,6,6 (1+4)*66=241,4,6,7 (14+7)*6=241,4,6,8 (14+6)*8=241,4,6,9 6*(914)=241,4,6,10 (41)*106=241,4,6,11 (16+11)*4=241,4,6,12 1*(4*(126))=241,4,6,13 1+4+6+13=241,4,7,7 (1+7)*(74)=241,4,7,8 (1+7)*48=241,4,7,9 (19)*(47)=241,4,7,10 無(wú)解1,4,7,11 (1+4)*711=241,4,7,12 1+4+7+12=241,4,7,13 1*4+7+13=241,4,8,8 1*4*88=241,4,8,9 1+4*89=241,4,8,10 無(wú)解1,4,8,11 1+4+8+11=241,4,8,12 1*4+8+12=241,4,8,13 (18+13)*4=241,4,9,9 無(wú)解1,4,9,10 1+4+9+10=241,4,9,11 1*4+9+11=241,4,9,12 1*4*912=241,4,9,13 1+4*913=241,4,10,10 1*4+10+10=241,4,10,11 41+10+11=241,4,10,12 4/(110/12)=241,4,10,13 無(wú)解1,4,11,11 無(wú)解1,4,11,12 無(wú)解1,4,11,13 無(wú)解1,4,12,12 (41)*1212=241,4,12,13 無(wú)解1,4,13,13 無(wú)解1,5,5,5 (51/5)*5=241,5,5,6 (1+5)*56=241,5,5,7 無(wú)解1,5,5,8 無(wú)解1,5,5,9 (1+5)*(95)=241,5,5,10 5*(105)1=241,5,5,11 (15)*(511)=241,5,5,12 (1+5/5)*12=241,5,5,13 1+5+5+13=241,5,6,6 1*5*66=241,5,6,7 1+5*67=241,5,6,8 (15+8)*6=241,5,6,9 1*(6*(95))=241,5,6,10 (1+5)*(106)=241,5,6,11 (1+6)*511=241,5,6,12 1+5+6+12=241,5,6,13 1*5+6+13=241,5,7,7 無(wú)解1,5,7,8 (15+7)*8=241,5,7,9 (17)*(59)=241,5,7,10 (1+7/5)*10=241,5,7,11 1+5+7+11=241,5,7,12 1*5+7+12=241,5,7,13 (15)*(713)=241,5,8,8 (1*85)*8=241,5,8,9 (19)*(58)=241,5,8,10 1+5+8+10=241,5,8,11 1*5+8+11=241,5,8,12 (1+5)*(128)=241,5,8,13 5*(138)1=241,5,9,9 1+5+9+9=241,5,9,10 1*5+9+10=241,5,9,11 51+9+11=241,5,9,12 (1+9)/5*12=241,5,9,13 (1+5)*(139)=241,5,10,10 51+10+10=241,5,10,11 (1+11)/5*10=241,5,10,12 1/5*10*12=241,5,10,13 10/(5/(131))=241,5,11,11 (11*111)/5=241,5,11,12 (111)/5*12=241,5,11,13 無(wú)解1,5,12,12 12/(1+5)*12=241,5,12,13 無(wú)解1,5,13,13 無(wú)解1,6,6,6 (61)*66=241,6,6,7 無(wú)解1,6,6,8 6/(16/8)=241,6,6,9 (16+9)*6=241,6,6,10 1*(6*(106))=241,6,6,11 1+6+6+11=241,6,6,12 1*6+6+12=241,6,6,13 1+6*613=241,6,7,7 無(wú)解1,6,7,8 無(wú)解1,6,7,9 (1+7)*(96)=241,6,7,10 1+6+7+10=241,6,7,11 1*6+7+11=241,6,7,12 (16+7)*12=241,6,7,13 無(wú)解1,6,8,8 (16+8)*8=241,6,8,9 1+6+8+9=241,6,8,10 1*6+8+10=241,6,8,11 (18+11)*6=241,6,8,12 1*(6*(128))=241,6,8,13 (113)*(68)=241,6,9,9 1*6+9+9=241,6,9,10 (1+10/6)*9=241,6,9,11 無(wú)解1,6,9,12 (19+12)*6=241,6,9,13 1*(6*(139))=241,6,10,10 無(wú)解1,6,10,11 無(wú)解1,6,10,12 10/(61)*12=241,6,10,13 (110+13)*6=241,6,11,11 無(wú)解1,6,11,12 (1+11)/6*12=241,6,11,13 (1+11*13)/6=241,6,12,12 1/6*12*12=241,6,12,13 12/(6/(131))=241,6,13,13 無(wú)解1,7,7,7 無(wú)解1,7,7,8 無(wú)解1,7,7,9 1+7+7+9=241,7,7,10 1*7+7+10=241,7,7,11 (17)*(711)=241,7,7,12 (1+7/7)*12=241,7,7,13 無(wú)解1,7,8,8 1+7+8+8=241,7,8,9 1*7+8+9=241,7,8,10 1*(8*(107))=241,7,8,11 (1+7)*(118)=241,7,8,12 (17+8)*12=241,7,8,13 無(wú)解1,7,9,9 71+9+9=241,7,9,10 (19)*(710)=241,7,9,11 (1+11)*(97)=241,7,9,12 (1+7)*(129)=241,7,9,13 (17)*(913)=241,7,10,10 無(wú)解1,7,10,11 無(wú)解1,7,10,12 (1017)*12=241,7,10,13 (1+7)*(1310)=241,7,11,11 無(wú)解1,7,11,12 無(wú)解1,7,11,13 無(wú)解1,7,12,12 12/(71)*12=241,7,12,13 (1+13)/7*12=241,7,13,13 (13*131)/7=241,8,8,8 1*8+8+8=241,8,8,9 81+8+9=241,8,8,10 (18+10)*8=241,8,8,11 1*(8*(118))=241,8,8,12 (1+8/8)*12=241,8,8,13 無(wú)解1,8,9,9 無(wú)解1,8,9,10 無(wú)解1,8,9,11 (19)*(811)=241,8,9,12 (18+9)*12=241,8,9,13 8*(1319)=241,8,10,10 無(wú)解1,8,10,11 (1+11)*(108)=241,8,10,12 (1*108)*12=241,8,10,13 1*(8*(1310))=241,8,11,11 無(wú)解1,8,11,12 (1118)*12=241,8,11,13 (111+13)*8=241,8,12,12 12/(12/81)=241,8,12,13 無(wú)解1,8,13,13 無(wú)解1,9,9,9 無(wú)解1,9,9,10 無(wú)解1,9,9,11 無(wú)解1,9,9,12 (1+9/9)*12=241,9,9,13 無(wú)解1,9,10,10 無(wú)解1,9,10,11 無(wú)解1,9,10,12 (19+10)*12=241,9,10,13 (19)*(1013)=241,9,11,11 (1+11)*(119)=241,9,11,12 (1*119)*12=241,9,11,13 (113)*(911)=241,9,12,12 (1219)*12=241,9,12,13 無(wú)解1,9,13,13 無(wú)解1,10,10,10 無(wú)解1,10,10,11 無(wú)解1,10,10,12 (1+10/10)*12=241,10,10,13 無(wú)解1,10,11,11 無(wú)解1,10,11,12 (110+11)*12=241,10,11,13 無(wú)解1,10,12,12 (1*1210)*12=241,10,12,13 (113)*(1012)=241,10,13,13 無(wú)解1,11,11,11 無(wú)解1,11,11,12 (1+11/11)*12=241,11,11,13 (1+11)*(1311)=241,11,12,12 (111+12)*12=241,11,12,13 1*(12*(1311))=241,11,13,13 (1+11/13)*13=241,12,12,12 (1+12/12)*12=241,12,12,13 (112+13)*12=241,12,13,13 (1+13/13)*12=241,13,13,13 無(wú)解2,2,2,2 無(wú)解2,2,2,3 (2+2)*2*3=242,2,2,4 (2+2+2)*4=242,2,2,5 2*(2+2*5)=242,2,2,6 無(wú)解2,2,2,7 2*(2*72)=242,2,2,8 (2/2+2)*8=242,2,2,9 2+2*(2+9)=242,2,2,10 2+(2+2*10)=242,2,2,11 2*(2/2+11)=242,2,2,12 (2+22)*12=242,2,2,13 22*(213)=242,2,3,3 (2+2*3)*3=242,2,3,4 (2+2+4)*3=242,2,3,5 (2*52)*3=242,2,3,6 (2/2+3)*6=242,2,3,7 2*(2+3+7)=242,2,3,8 (22+3)*8=242,2,3,9 (2+2/3)*9=242,2,3,10 2*(3+10)2=242,2,3,11 2*(32+11)=242,2,3,12 (2+2)*3+12=242,2,3,13 2*(23+13)=242,2,4,4 2*(2*4+4)=242,2,4,5 2+(2+4*5)=242,2,4,6 (22+4)*6=242,2,4,7 2+2*(4+7)=242,2,4,8 (2+2)*4+8=242,2,4,9 2+2*9+4=242,2,4,10 2*(2*(104))=242,2,4,11 2(24)*11=242,2,4,12 2*(2+4)+12=242,2,4,13 2+2*134=242,2,5,5 2*(2+5+5)=242,2,5,6 2+2*(5+6)=242,2,5,7 2*5+2*7=242,2,5,8 2*(5+8)2=242,2,5,9 2*(52+9)=242,2,5,10 2*(2+5)+10=242,2,5,11 2*(2*(115))=242,2,5,12 2+2*5+12=242,2,5,13 無(wú)解2,2,6,6 (2+6)/2*6=242,2,6,7 2*(2+7)+6=242,