Q: Is 1,331,667 a Prime Number?
A: No, 1,331,667 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 1331667 can be evenly divided by 1 3 9 27 31 37 43 93 111 129 279 333 387 837 999 1,147 1,161 1,333 1,591 3,441 3,999 4,773 10,323 11,997 14,319 30,969 35,991 42,957 49,321 147,963 443,889 and 1,331,667, with no remainder.
Since 1,331,667 cannot be divided by just 1 and 1,331,667, it is not a prime number.