Q: Is 2,400,123 a Prime Number?
A: No, 2,400,123 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 2400123 can be evenly divided by 1 3 11 33 257 283 771 849 2,827 3,113 8,481 9,339 72,731 218,193 800,041 and 2,400,123, with no remainder.
Since 2,400,123 cannot be divided by just 1 and 2,400,123, it is not a prime number.