Q: Is 1,266,426 a Prime Number?
A: No, 1,266,426 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 1266426 can be evenly divided by 1 2 3 6 7 9 14 18 19 21 23 38 42 46 57 63 69 114 126 133 138 161 171 207 266 322 342 399 414 437 483 529 798 874 966 1,058 1,197 1,311 1,449 1,587 2,394 2,622 2,898 3,059 3,174 3,703 3,933 4,761 6,118 7,406 7,866 9,177 9,522 10,051 11,109 18,354 20,102 22,218 27,531 30,153 33,327 55,062 60,306 66,654 70,357 90,459 140,714 180,918 211,071 422,142 633,213 and 1,266,426, with no remainder.
Since 1,266,426 cannot be divided by just 1 and 1,266,426, it is not a prime number.