SAT Math Practice Question #24425 - SATify | SATify

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SAT Math Practice Question #24425 - SATify | SATify

#24425

number theory

factorials

hard

150 sec

What is the least positive integer $m$ such that $m \cdot 2! \cdot 3! \cdot \dots \cdot 15!$ is a perfect square?

A.

77

B.

1001

C.

91

D.

143

E.

105