Q: Is 872,109 a Prime Number?
A: No, 872,109 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 872109 can be evenly divided by 1 3 7 9 21 63 109 127 327 381 763 889 981 1,143 2,289 2,667 6,867 8,001 13,843 41,529 96,901 124,587 290,703 and 872,109, with no remainder.
Since 872,109 cannot be divided by just 1 and 872,109, it is not a prime number.