⧼10!⧽

❍= 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

❍= 90 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

❍= 720 × 7 × 6 × 5 × 4 × 3 × 2 × 1

❍= 5.040 × 6 × 5 × 4 × 3 × 2 × 1

❍= 30.240 × 5 × 4 × 3 × 2 × 1

❍= 151.200 × 4 × 3 × 2 × 1

❍= 604.800 × 3 × 2 × 1

❍= 1.814.400 × 2 × 1

❍= 3.628.800 × 1

❍= 3.628.800

⧼7!⧽

❍= 7 × 6 × 5 × 4 × 3 × 2 × 1

❍= 42 × 5 × 4 × 3 × 2 × 1

❍= 210 × 4 × 3 × 2 × 1

❍= 840 × 3 × 2 × 1

❍= 2.520 × 2 × 1

❍= 5.040 × 1

❍= 5.040

3.628.800 – 5.040

= 363.760

⧼10!⧽

= 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

= 90 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1

= 720 × 7 × 6 × 5 × 4 × 3 × 2 × 1

= 5.040 × 6 × 5 × 4 × 3 × 2 × 1

= 30.240 × 5 × 4 × 3 × 2 × 1

= 151.200 × 4 × 3 × 2 × 1

= 604.800 × 3 × 2 × 1

= 1.814.400 × 2 × 1

= 3.628.800 × 1

= 3.628.800

⧼7!⧽

❍= 7 × 6 × 5 × 4 × 3 × 2 × 1

❍= 42 × 5 × 4 × 3 × 2 × 1

❍= 210 × 4 × 3 × 2 × 1

❍= 840 × 3 × 2 × 1

❍= 2.520 × 2 × 1

❍= 5.040 × 1

❍= 5.040✔