Q: Is 640,160 a Prime Number?
A: No, 640,160 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 640160 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 4,001 8,002 16,004 20,005 32,008 40,010 64,016 80,020 128,032 160,040 320,080 and 640,160, with no remainder.
Since 640,160 cannot be divided by just 1 and 640,160, it is not a prime number.