Q: Is 141,561 a Prime Number?
A: No, 141,561 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 141561 can be evenly divided by 1 3 7 9 21 27 49 63 107 147 189 321 441 749 963 1,323 2,247 2,889 5,243 6,741 15,729 20,223 47,187 and 141,561, with no remainder.
Since 141,561 cannot be divided by just 1 and 141,561, it is not a prime number.