Q: Is 1,021,888 a Prime Number?
A: No, 1,021,888 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 1021888 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 64 112 224 448 2,281 4,562 9,124 15,967 18,248 31,934 36,496 63,868 72,992 127,736 145,984 255,472 510,944 and 1,021,888, with no remainder.
Since 1,021,888 cannot be divided by just 1 and 1,021,888, it is not a prime number.