SAT Math Practice Question #26437 - SATify | SATify

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SAT Math Practice Question #26437 - SATify | SATify

#26437

number theory

factorials

Relative Motion

medium

90 sec

Which of the following numbers is a perfect square?

A.

$2 \cdot 5! \cdot 7!$

B.

$2 \cdot 6! \cdot 8!$

C.

$2 \cdot 7! \cdot 9!$

D.

$2 \cdot 8! \cdot 10!$

E.

$2 \cdot 9! \cdot 11!$