Q: Is 1,128,423 a Prime Number?
A: No, 1,128,423 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 1128423 can be evenly divided by 1 3 47 53 141 151 159 453 2,491 7,097 7,473 8,003 21,291 24,009 376,141 and 1,128,423, with no remainder.
Since 1,128,423 cannot be divided by just 1 and 1,128,423, it is not a prime number.