Q: Is 838,215 a Prime Number?
A: No, 838,215 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 838215 can be evenly divided by 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 887 945 2,661 4,435 6,209 7,983 13,305 18,627 23,949 31,045 39,915 55,881 93,135 119,745 167,643 279,405 and 838,215, with no remainder.
Since 838,215 cannot be divided by just 1 and 838,215, it is not a prime number.