You need at least two numbers to find an LCM.
60
3801. That's their LCM.
543
543 is not prime. 543 = 3 * 181
543
543
543 + 78900000 = 78900543
1 3 181 543.
198
87646555555555555553248777775813 + 543 = 87646555555555555553248777776356
543 over 1
785,423 multiplied by 543 is 426,484,689