Floating-point arithmetic M(10,6,6)

Consider arithmetic $$M(10,6,6)$$, (decimal system, 6 places for mantissa, 6 places for exponent). I have to find the largest positive and smallest positive number in this arithmetic. I was looking for clues. But, I don't know how to do this. Example for $$M(2,3,3)$$:

• You should have a specific definition of what each piece means. You have not specified a sign anywhere. Is it hidden in the mantissa? It would seem likely the greatest exponent is $999999$ or $+99999$ or some such. By smallest do you mean the most negative or the closest positive number to zero? Please think about the problem and improve your question. – Ross Millikan Jan 24 at 0:16
• You're right. I mean positive numbers. So, this is an example of task for exam. I have example for $M(2,3,3)$. Could you want to see? – pawelK Jan 24 at 0:26