Q: Is 128,920 a Prime Number?
A: No, 128,920 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 128920 can be evenly divided by 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 293 440 586 1,172 1,465 2,344 2,930 3,223 5,860 6,446 11,720 12,892 16,115 25,784 32,230 64,460 and 128,920, with no remainder.
Since 128,920 cannot be divided by just 1 and 128,920, it is not a prime number.