อันนี้ผมทำได้ 555
ROSE = 4*31*35*35*1
-> 4*3,1*3,5*3,5*1
SHINE = 5*31*22*27*25*1
-> 5*3,1*2,2*2,7*2,5*1
6*12*26*16*35*15*17*2
-> 6*1,2*2,6*1,6*3,5*1,5*1,7*2
-> FIFTEEN = 15
1*37*25*17*22*27*25*15*32*23*4
-> 1*3,7*2,5*1,7*2,2*2,7*2,5*1,5*3,2*2,3*4
-> ONENINESIX = 196
ได้ $A\times B = 2940$
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