Q: Is 2,001,405 a Prime Number?
A: No, 2,001,405 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 2001405 can be evenly divided by 1 3 5 7 15 21 35 49 105 147 245 343 389 735 1,029 1,167 1,715 1,945 2,723 5,145 5,835 8,169 13,615 19,061 40,845 57,183 95,305 133,427 285,915 400,281 667,135 and 2,001,405, with no remainder.
Since 2,001,405 cannot be divided by just 1 and 2,001,405, it is not a prime number.