Q: Is 1,211,240 a Prime Number?
A: No, 1,211,240 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 1211240 can be evenly divided by 1 2 4 5 8 10 20 40 107 214 283 428 535 566 856 1,070 1,132 1,415 2,140 2,264 2,830 4,280 5,660 11,320 30,281 60,562 121,124 151,405 242,248 302,810 605,620 and 1,211,240, with no remainder.
Since 1,211,240 cannot be divided by just 1 and 1,211,240, it is not a prime number.