for this question we can solve it even faster (there is a small trick)
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(10W1Z)2 x (15)10 = (y01011001)2 <==> Let A * B= C
here if you can observe B= 15 so c must be divisible by 3 and 5.
lets go for 3 : if we take y=0 we get 89 not divisible by 3 and 5 fails.
y=1 we get 345 divisible by both 3 and 5
so (10W1Z)2= (23)10 = (10111)2
Therefore x=1, y=1 and z=1 solution.
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