Compute without using a calculator: 8!-7!
8! - 7! = 8 × 7! - 7! = 7!(8 - 1) = 7! × 7 = 5040 × 7 = 35,280.
Complete the following task based on the instruction and optional input provided.### Instruction:
Compute without using a calculator: 8!-7!

### Output:
8! - 7! = 8 × 7! - 7! = 7!(8 - 1) = 7! × 7 = 5040 × 7 = 35,280.