Q: Is 356,020 a Prime Number?
A: No, 356,020 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 356020 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 2,543 5,086 10,172 12,715 17,801 25,430 35,602 50,860 71,204 89,005 178,010 and 356,020, with no remainder.
Since 356,020 cannot be divided by just 1 and 356,020, it is not a prime number.