Q: Is 324,640 a Prime Number?
A: No, 324,640 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 324640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 2,029 4,058 8,116 10,145 16,232 20,290 32,464 40,580 64,928 81,160 162,320 and 324,640, with no remainder.
Since 324,640 cannot be divided by just 1 and 324,640, it is not a prime number.