Marco, Inc. determined the following information concerning its common stock during $2020$:

January $115,600$ shares outstanding

March $1$ Issued a $3-$for$-1$ stock split

July $1$ Issued $1,500$ additional shares

October $1$ Reacquired $2,000$ shares

Required:

What should Marco, Inc. use as the denominator for its basic earnings per share calculation for $2020?$ Round intermediate and final answer to the whole number.

Weighted average number of common shares outstanding $\_\_\_\_\_\_\_\_\_?$