Q: Is 1,431,340 a Prime Number?
A: No, 1,431,340 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 1431340 can be evenly divided by 1 2 4 5 10 20 59 118 236 295 590 1,180 1,213 2,426 4,852 6,065 12,130 24,260 71,567 143,134 286,268 357,835 715,670 and 1,431,340, with no remainder.
Since 1,431,340 cannot be divided by just 1 and 1,431,340, it is not a prime number.