Q: Is 161,320 a Prime Number?
A: No, 161,320 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 161320 can be evenly divided by 1 2 4 5 8 10 20 37 40 74 109 148 185 218 296 370 436 545 740 872 1,090 1,480 2,180 4,033 4,360 8,066 16,132 20,165 32,264 40,330 80,660 and 161,320, with no remainder.
Since 161,320 cannot be divided by just 1 and 161,320, it is not a prime number.