5 times 5

Number Theory Level 2

5!−(5−1)!−(5−2)!−(5−3)!−(5−4)!= ? \large 5! - (5-1)! - (5-2)! - (5-3)!- (5-4)! = \, ?

Notation: !! denotes the factorial notation. For example, 8!=1×2×3×⋯×88! = 1\times2\times3\times\cdots\times8 .

View solutions
A Former Brilliant Member by A Former Brilliant Member
×

Problem Loading...

Note Loading...

Set Loading...