since we are on puzzles I'll throw this one in for the computer whiz What number when divided by 10 leaves a remaider of 9 when divided by 9 leaves a remainder of 8 when divided by 8 leaves a remainder of 7 when divided by 7 leaves a remainde of 6 when divided by 6 leaves a remainder of 5 when divided by 5 leaves a remainde of 4 when divided by 4 leaves a remaider of 3 when divided by 3 leaves a remainder of 2 when divided by 2 leaves a remainder of 1