Q: Is 1,550,001 a Prime Number?
A: No, 1,550,001 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 1550001 can be evenly divided by 1 3 19 57 71 213 383 1,149 1,349 4,047 7,277 21,831 27,193 81,579 516,667 and 1,550,001, with no remainder.
Since 1,550,001 cannot be divided by just 1 and 1,550,001, it is not a prime number.