Q: Is 39,920 a Prime Number?
A: No, 39,920 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 39920 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 499 998 1,996 2,495 3,992 4,990 7,984 9,980 19,960 and 39,920, with no remainder.
Since 39,920 cannot be divided by just 1 and 39,920, it is not a prime number.