Q: Is 840,213 a Prime Number?
A: No, 840,213 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 840213 can be evenly divided by 1 3 9 11 23 27 33 41 69 81 99 123 207 253 297 369 451 621 759 891 943 1,107 1,353 1,863 2,277 2,829 3,321 4,059 6,831 8,487 10,373 12,177 20,493 25,461 31,119 36,531 76,383 93,357 280,071 and 840,213, with no remainder.
Since 840,213 cannot be divided by just 1 and 840,213, it is not a prime number.