The GRX 810 front derailleur is compatible with Shimano GRX 11-speed road bike drivetrains.
I don't have a list of choices in front of me, so I can't tell you what numbers are not factors of 810. I can, however, list the factors of 810 for you. They are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, and 810.
5% of 810= 5% * 810= 0.05 * 810= 40.5
17% of 810= 17% * 810= 0.17 * 810= 137.7
810
800
810
810
810/2 = 405 810/3 = 270 * 810/4 = 202.5 810/5 = 162 810/6 = 135 810/9 = 90 810/10 = 81 so 810 is divisible by 2 3 5 6 9 10 but not by 4
810
810
The key features of the Shimano GRX 810 shifters include precise and smooth shifting, ergonomic design for comfort, and compatibility with gravel and adventure bikes. The benefits of these shifters are improved performance, better control on rough terrain, and enhanced overall riding experience.
810-56 = 754