2.3.5.11.13.17.19, etc

2.3.5.11.13.17.19, etc

2.3.5.11.13.17.19. Etc. are prime numbers

What is the sum of the fashionable figures in the product of formula 2 * 3 * 5 * 7 * 11 * 13 * 17

2*3*5*7*11*13*17＝510510
The sum of the figures is 12

2/9-6/13×2/9 36×（17/18-2/9） 4/13×4/7-3/7×4/13

2/9-6/13×2/9
=2/9x(1-6/13)
=2/9x7/13
=12/117
36×（17/18-2/9）
=36x17/18-36x2/9
=34-8
=26
4/13×4/7-3/7×4/13
=4/13x(4/7-3/7)
=4/13x1/7
=4/91

-9 2 / 3 + (- 13 7 / 8) - 2003.3-8 - (- 7 2 / 3) - (+ 17 / 8) - (- 2003.3)=

-9 2 / 3 + (- 13 7 / 8) - 2003.3-8 - (- 7 2 / 3) - (+ 17 / 8) - (- 2003.3)
=-9 2 / 3 + 7 2 / 3-13 7 / 8-2 1 / 8-2003.3 + 2003.3-8
=-2-16+0-8
=-26