Q: Is 261,443 a Prime Number?
A: No, 261,443 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 261443 can be evenly divided by 1 7 13 17 91 119 169 221 1,183 1,547 2,197 2,873 15,379 20,111 37,349 and 261,443, with no remainder.
Since 261,443 cannot be divided by just 1 and 261,443, it is not a prime number.