Q: Is 398,480 a Prime Number?
A: No, 398,480 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 398480 can be evenly divided by 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 293 340 586 680 1,172 1,360 1,465 2,344 2,930 4,688 4,981 5,860 9,962 11,720 19,924 23,440 24,905 39,848 49,810 79,696 99,620 199,240 and 398,480, with no remainder.
Since 398,480 cannot be divided by just 1 and 398,480, it is not a prime number.