Q: Is 128,240 a Prime Number?
A: No, 128,240 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 128240 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 229 280 458 560 916 1,145 1,603 1,832 2,290 3,206 3,664 4,580 6,412 8,015 9,160 12,824 16,030 18,320 25,648 32,060 64,120 and 128,240, with no remainder.
Since 128,240 cannot be divided by just 1 and 128,240, it is not a prime number.