Q: Is 1,440,640 a Prime Number?
A: No, 1,440,640 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 1440640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 2,251 4,502 9,004 11,255 18,008 22,510 36,016 45,020 72,032 90,040 144,064 180,080 288,128 360,160 720,320 and 1,440,640, with no remainder.
Since 1,440,640 cannot be divided by just 1 and 1,440,640, it is not a prime number.