Q: Is 1,231,240 a Prime Number?
A: No, 1,231,240 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 1231240 can be evenly divided by 1 2 4 5 8 10 20 40 30,781 61,562 123,124 153,905 246,248 307,810 615,620 and 1,231,240, with no remainder.
Since 1,231,240 cannot be divided by just 1 and 1,231,240, it is not a prime number.