Q: Is 1,403,420 a Prime Number?
A: No, 1,403,420 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 1403420 can be evenly divided by 1 2 4 5 10 20 47 94 188 235 470 940 1,493 2,986 5,972 7,465 14,930 29,860 70,171 140,342 280,684 350,855 701,710 and 1,403,420, with no remainder.
Since 1,403,420 cannot be divided by just 1 and 1,403,420, it is not a prime number.