A number theory problem by young hwang

WHAT IS MEANING OF THIS? (10!)

10 9 8 7 6 5 4 3 2*1 10-9+8-7+6-5+4-3+2-1 Wow! Ten! 10+9+8+7+6+5+4+3+2+1 non of this is right.

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2 solutions

Leonblum Iznotded
Jul 31, 2018

Wow! Factorial!

n ! = n ( n 1 ) ( n 2 ) . . . ( 2 ) ( 1 ) n!=n(n-1)(n-2)...(2)(1)

10 ! = 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 3628800 10!=10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = \boxed{3628800}

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