Answer Posted / joe

u c 5 numbers.....
we add the combination of digits.....

a.17->1+7=8(even)
b.23->2+3=5(odd)!!!!!
c.37->3+7=10(even)
d.13->1+3=4(even)
e.73->7+3=10(even)

all combinations are even xept 23
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