Q: Is 166,240 a Prime Number?
A: No, 166,240 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 166240 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 1,039 2,078 4,156 5,195 8,312 10,390 16,624 20,780 33,248 41,560 83,120 and 166,240, with no remainder.
Since 166,240 cannot be divided by just 1 and 166,240, it is not a prime number.