543
It is in many countries, but sadly, the will to enforce this rule, is not there.
543 is not prime. 543 = 3 * 181
543
543
543 + 78900000 = 78900543
198
87646555555555555553248777775813 + 543 = 87646555555555555553248777776356
1 3 181 543.
77 is not divisible by 543
This is called an injunction, and blocks a proposed or existing practice.
its244.35truuee answer45*543/100=244.35