Q: Is 128,742 a Prime Number?
A: No, 128,742 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 128742 can be evenly divided by 1 2 3 6 43 86 129 258 499 998 1,497 2,994 21,457 42,914 64,371 and 128,742, with no remainder.
Since 128,742 cannot be divided by just 1 and 128,742, it is not a prime number.