Q: Is 161,740 a Prime Number?
A: No, 161,740 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 161740 can be evenly divided by 1 2 4 5 10 20 8,087 16,174 32,348 40,435 80,870 and 161,740, with no remainder.
Since 161,740 cannot be divided by just 1 and 161,740, it is not a prime number.