Q: Is 221,740 a Prime Number?
A: No, 221,740 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 221740 can be evenly divided by 1 2 4 5 10 20 11,087 22,174 44,348 55,435 110,870 and 221,740, with no remainder.
Since 221,740 cannot be divided by just 1 and 221,740, it is not a prime number.