Q: Is 211,528 a Prime Number?
A: No, 211,528 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 211528 can be evenly divided by 1 2 4 8 137 193 274 386 548 772 1,096 1,544 26,441 52,882 105,764 and 211,528, with no remainder.
Since 211,528 cannot be divided by just 1 and 211,528, it is not a prime number.