Q: Is 840,100 a Prime Number?
A: No, 840,100 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 840100 can be evenly divided by 1 2 4 5 10 20 25 31 50 62 100 124 155 271 310 542 620 775 1,084 1,355 1,550 2,710 3,100 5,420 6,775 8,401 13,550 16,802 27,100 33,604 42,005 84,010 168,020 210,025 420,050 and 840,100, with no remainder.
Since 840,100 cannot be divided by just 1 and 840,100, it is not a prime number.