Q: Is 2,600,661 a Prime Number?
A: No, 2,600,661 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 2600661 can be evenly divided by 1 3 7 21 59 177 413 1,239 2,099 6,297 14,693 44,079 123,841 371,523 866,887 and 2,600,661, with no remainder.
Since 2,600,661 cannot be divided by just 1 and 2,600,661, it is not a prime number.