Q: Is 161,140 a Prime Number?
A: No, 161,140 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 161140 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,151 2,302 4,604 5,755 8,057 11,510 16,114 23,020 32,228 40,285 80,570 and 161,140, with no remainder.
Since 161,140 cannot be divided by just 1 and 161,140, it is not a prime number.