Q: Is 261,400 a Prime Number?
A: No, 261,400 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 261400 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 1,307 2,614 5,228 6,535 10,456 13,070 26,140 32,675 52,280 65,350 130,700 and 261,400, with no remainder.
Since 261,400 cannot be divided by just 1 and 261,400, it is not a prime number.