Q: Is 3,666,642 a Prime Number?
A: No, 3,666,642 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 3666642 can be evenly divided by 1 2 3 6 7 14 21 42 67 134 201 402 469 938 1,303 1,407 2,606 2,814 3,909 7,818 9,121 18,242 27,363 54,726 87,301 174,602 261,903 523,806 611,107 1,222,214 1,833,321 and 3,666,642, with no remainder.
Since 3,666,642 cannot be divided by just 1 and 3,666,642, it is not a prime number.