Q: Is 123,540 a Prime Number?
A: No, 123,540 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 123540 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 29 30 58 60 71 87 116 142 145 174 213 284 290 348 355 426 435 580 710 852 870 1,065 1,420 1,740 2,059 2,130 4,118 4,260 6,177 8,236 10,295 12,354 20,590 24,708 30,885 41,180 61,770 and 123,540, with no remainder.
Since 123,540 cannot be divided by just 1 and 123,540, it is not a prime number.