Q: Is 1,125,421 a Prime Number?
A: No, 1,125,421 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 1125421 can be evenly divided by 1 11 71 121 131 781 1,441 8,591 9,301 15,851 102,311 and 1,125,421, with no remainder.
Since 1,125,421 cannot be divided by just 1 and 1,125,421, it is not a prime number.