Q: Is 1,128,420 a Prime Number?
A: No, 1,128,420 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 1128420 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 6,269 12,538 18,807 25,076 31,345 37,614 56,421 62,690 75,228 94,035 112,842 125,380 188,070 225,684 282,105 376,140 564,210 and 1,128,420, with no remainder.
Since 1,128,420 cannot be divided by just 1 and 1,128,420, it is not a prime number.