Q: Is 320,490 a Prime Number?
A: No, 320,490 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 320490 can be evenly divided by 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 1,187 2,374 3,561 5,935 7,122 10,683 11,870 17,805 21,366 32,049 35,610 53,415 64,098 106,830 160,245 and 320,490, with no remainder.
Since 320,490 cannot be divided by just 1 and 320,490, it is not a prime number.