Solve 6*5*4*3*2*1-6*5*2

$$6 \times 5 \times 4 \times 3 \times 2 \times 1-6 \times 5 \times 2$$

Evaluate

$$660$$

Solution Steps

Multiply 6 and 5 to get 30.

$$30\times 4\times 3\times 2\times 1-6\times 5\times 2$$

Multiply 30 and 4 to get 120.

$$120\times 3\times 2\times 1-6\times 5\times 2$$

Multiply 120 and 3 to get 360.

$$360\times 2\times 1-6\times 5\times 2$$

Multiply 360 and 2 to get 720.

$$720\times 1-6\times 5\times 2$$

Multiply 720 and 1 to get 720.

$$720-6\times 5\times 2$$

Multiply 6 and 5 to get 30.

$$720-30\times 2$$

Multiply 30 and 2 to get 60.

$$720-60$$

Subtract 60 from 720 to get 660.

$$660$$

Factor

$$2^{2}\times 3\times 5\times 11$$