Q: Is 1,320,400 a Prime Number?
A: No, 1,320,400 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 1320400 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 3,301 6,602 13,204 16,505 26,408 33,010 52,816 66,020 82,525 132,040 165,050 264,080 330,100 660,200 and 1,320,400, with no remainder.
Since 1,320,400 cannot be divided by just 1 and 1,320,400, it is not a prime number.