Q: Is 20,620 a Prime Number?
A: No, 20,620 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 20620 can be evenly divided by 1 2 4 5 10 20 1,031 2,062 4,124 5,155 10,310 and 20,620, with no remainder.
Since 20,620 cannot be divided by just 1 and 20,620, it is not a prime number.