Q: Is 840,200 a Prime Number?
A: No, 840,200 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 840200 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 4,201 8,402 16,804 21,005 33,608 42,010 84,020 105,025 168,040 210,050 420,100 and 840,200, with no remainder.
Since 840,200 cannot be divided by just 1 and 840,200, it is not a prime number.