The number 840 can be written as where π and π are positive integers less than 10.
What is the value of π + π?
Note that, π! = 1 Γ 2 Γ 3 Γ Β· Β· Β· Γ (π β 1) Γ π.
Select one option, then click Submit.
8
9
10
12
15
Select an option, then submit.
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