<span>Read the Aesop's fable of The Wolf and the Lamb from this famous book. ... "There's my supper," thought he, "if only I can find some excuse to seize it." Then he ...</span><span>
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If a number has 5 as it's last digit, it's always divisible by 5: multiples of 5 have either 5 or 0 as the last digit.
If a number is divisible by 5, it is not a prime with one exception: of 5 itself. This is from the definition of prime numbers: divisible only by 1 and by itself.
