Q: Is 128,200 a Prime Number?
A: No, 128,200 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 128200 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 641 1,282 2,564 3,205 5,128 6,410 12,820 16,025 25,640 32,050 64,100 and 128,200, with no remainder.
Since 128,200 cannot be divided by just 1 and 128,200, it is not a prime number.