Q: Is 402,003 a Prime Number?
A: No, 402,003 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 402003 can be evenly divided by 1 3 7 9 21 27 63 81 189 567 709 2,127 4,963 6,381 14,889 19,143 44,667 57,429 134,001 and 402,003, with no remainder.
Since 402,003 cannot be divided by just 1 and 402,003, it is not a prime number.