Q: Is 3,920 a Prime Number?
A: No, 3,920 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 3920 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1,960 and 3,920, with no remainder.
Since 3,920 cannot be divided by just 1 and 3,920, it is not a prime number.