Q: Is 1,403,493 a Prime Number?
A: No, 1,403,493 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 1403493 can be evenly divided by 1 3 7 13 21 39 53 91 97 159 273 291 371 679 689 1,113 1,261 2,037 2,067 3,783 4,823 5,141 8,827 14,469 15,423 26,481 35,987 66,833 107,961 200,499 467,831 and 1,403,493, with no remainder.
Since 1,403,493 cannot be divided by just 1 and 1,403,493, it is not a prime number.