Q: Is 1,001,644 a Prime Number?
A: No, 1,001,644 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 1001644 can be evenly divided by 1 2 4 7 14 28 83 166 332 431 581 862 1,162 1,724 2,324 3,017 6,034 12,068 35,773 71,546 143,092 250,411 500,822 and 1,001,644, with no remainder.
Since 1,001,644 cannot be divided by just 1 and 1,001,644, it is not a prime number.