Q: Is 1,209,280 a Prime Number?
A: No, 1,209,280 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 1209280 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 3,779 7,558 15,116 18,895 30,232 37,790 60,464 75,580 120,928 151,160 241,856 302,320 604,640 and 1,209,280, with no remainder.
Since 1,209,280 cannot be divided by just 1 and 1,209,280, it is not a prime number.