Q: Is 820,145 a Prime Number?
A: No, 820,145 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 820145 can be evenly divided by 1 5 61 305 2,689 13,445 164,029 and 820,145, with no remainder.
Since 820,145 cannot be divided by just 1 and 820,145, it is not a prime number.