Q: Is 1,223,604 a Prime Number?
A: No, 1,223,604 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 1223604 can be evenly divided by 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 829 1,476 1,658 2,487 3,316 4,974 7,461 9,948 14,922 29,844 33,989 67,978 101,967 135,956 203,934 305,901 407,868 611,802 and 1,223,604, with no remainder.
Since 1,223,604 cannot be divided by just 1 and 1,223,604, it is not a prime number.