Q: Is 3,966,003 a Prime Number?
A: No, 3,966,003 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 3966003 can be evenly divided by 1 3 9 19 27 57 81 171 243 513 859 1,539 2,577 4,617 7,731 16,321 23,193 48,963 69,579 146,889 208,737 440,667 1,322,001 and 3,966,003, with no remainder.
Since 3,966,003 cannot be divided by just 1 and 3,966,003, it is not a prime number.