Q: Is 1,122,820 a Prime Number?
A: No, 1,122,820 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 1122820 can be evenly divided by 1 2 4 5 10 20 31 62 124 155 310 620 1,811 3,622 7,244 9,055 18,110 36,220 56,141 112,282 224,564 280,705 561,410 and 1,122,820, with no remainder.
Since 1,122,820 cannot be divided by just 1 and 1,122,820, it is not a prime number.