Q: Is 261,404 a Prime Number?
A: No, 261,404 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 261404 can be evenly divided by 1 2 4 11 13 22 26 44 52 143 286 457 572 914 1,828 5,027 5,941 10,054 11,882 20,108 23,764 65,351 130,702 and 261,404, with no remainder.
Since 261,404 cannot be divided by just 1 and 261,404, it is not a prime number.