In the figure, the same letter means the same number, and different letters mean different numbers. Two digits. EF=______ .

In the figure, the same letter means the same number, and different letters mean different numbers. Two digits. EF=______ .

FFF = f × 111 = f × 3 × 37, because two two digit AB and CD are multiplied to get FFF, then one of them should be 37, and the other is the product of 3 and F. let AB = 37, and CD be a multiple of 3