Q: Is 1,421,515 a Prime Number?
A: No, 1,421,515 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 1421515 can be evenly divided by 1 5 23 47 115 235 263 1,081 1,315 5,405 6,049 12,361 30,245 61,805 284,303 and 1,421,515, with no remainder.
Since 1,421,515 cannot be divided by just 1 and 1,421,515, it is not a prime number.