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Guess my number

Player 1 secretly thinks of a number that would appear within the multiplication grid.

Player 2 then asks Player 1 questions about their chosen number that they can only answer with ‘yes’ or ‘no’.

Player 2 uses the blank multiplication grid to keep track of the answers.

For example, If Player 2 asked ‘Is your number even?’ and Player 1 responded ‘yes’, Player 2 might cross off all the odd numbers that would appear on the multiplication square.

Player 2 can only ‘guess the number’ when they are left with 2 possibilities.

Once Player 2 has correctly guessed the number, swap roles.

Who can find the number using the least number of questions?