Q: Is 1,223,415 a Prime Number?
A: No, 1,223,415 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 1223415 can be evenly divided by 1 3 5 9 15 31 45 93 155 279 465 877 1,395 2,631 4,385 7,893 13,155 27,187 39,465 81,561 135,935 244,683 407,805 and 1,223,415, with no remainder.
Since 1,223,415 cannot be divided by just 1 and 1,223,415, it is not a prime number.