Q: Is 305,490 a Prime Number?
A: No, 305,490 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 305490 can be evenly divided by 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 599 1,198 1,797 2,995 3,594 5,990 8,985 10,183 17,970 20,366 30,549 50,915 61,098 101,830 152,745 and 305,490, with no remainder.
Since 305,490 cannot be divided by just 1 and 305,490, it is not a prime number.