Q: Is 163,940 a Prime Number?
A: No, 163,940 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 163940 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,171 2,342 4,684 5,855 8,197 11,710 16,394 23,420 32,788 40,985 81,970 and 163,940, with no remainder.
Since 163,940 cannot be divided by just 1 and 163,940, it is not a prime number.