Q: Is 1,121,540 a Prime Number?
A: No, 1,121,540 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 1121540 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 8,011 16,022 32,044 40,055 56,077 80,110 112,154 160,220 224,308 280,385 560,770 and 1,121,540, with no remainder.
Since 1,121,540 cannot be divided by just 1 and 1,121,540, it is not a prime number.