Q: Is 643,006 a Prime Number?
A: No, 643,006 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 643006 can be evenly divided by 1 2 7 13 14 26 91 182 3,533 7,066 24,731 45,929 49,462 91,858 321,503 and 643,006, with no remainder.
Since 643,006 cannot be divided by just 1 and 643,006, it is not a prime number.