Q: Is 345,820 a Prime Number?
A: No, 345,820 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 345820 can be evenly divided by 1 2 4 5 10 20 17,291 34,582 69,164 86,455 172,910 and 345,820, with no remainder.
Since 345,820 cannot be divided by just 1 and 345,820, it is not a prime number.