Q: Is 1,403,091 a Prime Number?
A: No, 1,403,091 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 1403091 can be evenly divided by 1 3 9 31 47 93 107 141 279 321 423 963 1,457 3,317 4,371 5,029 9,951 13,113 15,087 29,853 45,261 155,899 467,697 and 1,403,091, with no remainder.
Since 1,403,091 cannot be divided by just 1 and 1,403,091, it is not a prime number.