Q: Is 1,013,643 a Prime Number?
A: No, 1,013,643 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 1013643 can be evenly divided by 1 3 9 41 67 123 201 369 603 1,681 2,747 5,043 8,241 15,129 24,723 112,627 337,881 and 1,013,643, with no remainder.
Since 1,013,643 cannot be divided by just 1 and 1,013,643, it is not a prime number.