Q: Is 87,820 a Prime Number?
A: No, 87,820 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 87820 can be evenly divided by 1 2 4 5 10 20 4,391 8,782 17,564 21,955 43,910 and 87,820, with no remainder.
Since 87,820 cannot be divided by just 1 and 87,820, it is not a prime number.