Q: Is 122,409 a Prime Number?
A: No, 122,409 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 122409 can be evenly divided by 1 3 7 9 21 29 63 67 87 201 203 261 469 603 609 1,407 1,827 1,943 4,221 5,829 13,601 17,487 40,803 and 122,409, with no remainder.
Since 122,409 cannot be divided by just 1 and 122,409, it is not a prime number.