There is little doubt that of all unsolved problems of mathematics the most widely known and most often attempted is that known as Fermat's Last Theorem.
J111 The integer M consists of 100 threes and the integer N consists of 100 sixes. What digit occurs in the product MN?
J101 In n is a positive integer other than 2,32,3 or 55, any square can be dissected into n smaller squares.
J. D. Gray
The playing of games has its origins in antiquity - the ancient Romans, Greeks and Chinese all played games of varying degrees of difficulty.
J121 The numbers a,b,c,d and e are consecutive integers, each smaller than 10,000.
J111 The integer M consists of 100 threes and the integer N consists of 100 sixes. What digit occurs in the product MN?
are integers such that are both divisible by 7. Prove that both are both divisible by 7.