Q: Is 328,400 a Prime Number?
A: No, 328,400 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 328400 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 821 1,642 3,284 4,105 6,568 8,210 13,136 16,420 20,525 32,840 41,050 65,680 82,100 164,200 and 328,400, with no remainder.
Since 328,400 cannot be divided by just 1 and 328,400, it is not a prime number.