Q: Is 209,740 a Prime Number?
A: No, 209,740 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 209740 can be evenly divided by 1 2 4 5 10 20 10,487 20,974 41,948 52,435 104,870 and 209,740, with no remainder.
Since 209,740 cannot be divided by just 1 and 209,740, it is not a prime number.