Q: Is 211,520 a Prime Number?
A: No, 211,520 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 211520 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 661 1,322 2,644 3,305 5,288 6,610 10,576 13,220 21,152 26,440 42,304 52,880 105,760 and 211,520, with no remainder.
Since 211,520 cannot be divided by just 1 and 211,520, it is not a prime number.