Q: Is 640,480 a Prime Number?
A: No, 640,480 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 640480 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 4,003 8,006 16,012 20,015 32,024 40,030 64,048 80,060 128,096 160,120 320,240 and 640,480, with no remainder.
Since 640,480 cannot be divided by just 1 and 640,480, it is not a prime number.