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divisible by 8
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4821x14y is an 8-digit number divisible by 72
2014-08-06
From RAYA:
if 4821x14y is an 8-digit number divisible by 72. How many values can x and y take?
Answered by Penny Nom.
The square of any odd number, decreased by 1, is divisible by 8
2012-11-16
From bailey:
Prove that the square of any odd number, decreased by 1, is divisible by 8
Answered by Penny Nom.
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