No.
no .it is not
13830 = 4610*3 and 15*922
922
922/3 = 307 r 1 922/3 = 307.333r
922 - 819 = 103
32.9286
819+922=1731
307.3333
511, 922 and 1433.
yes it is. 465 is half of 922 so yes
All numbers divisible by 3, 221, 381, 474, 922 & 726 are multiples of their lowest common multiple which is: 3 = 3 221 = 13 x 17 381 = 3 x 127 474 = 2 x 3 x 79 922 = 2 x 461 726 = 2 x 3 x 112 lcm = 2 x 3 x 112 x 13 x 17 x 79 x 127 x 461 = 736242224998 ie 736242224998, 1484193849996, 2226290774994, 2968387699992, 3710484624990, ...