Q: Is 161,680 a Prime Number?
A: No, 161,680 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 161680 can be evenly divided by 1 2 4 5 8 10 16 20 40 43 47 80 86 94 172 188 215 235 344 376 430 470 688 752 860 940 1,720 1,880 2,021 3,440 3,760 4,042 8,084 10,105 16,168 20,210 32,336 40,420 80,840 and 161,680, with no remainder.
Since 161,680 cannot be divided by just 1 and 161,680, it is not a prime number.