Q: Is 655,120 a Prime Number?
A: No, 655,120 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 655120 can be evenly divided by 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 304 380 431 760 862 1,520 1,724 2,155 3,448 4,310 6,896 8,189 8,620 16,378 17,240 32,756 34,480 40,945 65,512 81,890 131,024 163,780 327,560 and 655,120, with no remainder.
Since 655,120 cannot be divided by just 1 and 655,120, it is not a prime number.