Q: Is 28,240 a Prime Number?
A: No, 28,240 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 28240 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 353 706 1,412 1,765 2,824 3,530 5,648 7,060 14,120 and 28,240, with no remainder.
Since 28,240 cannot be divided by just 1 and 28,240, it is not a prime number.