Q: Is 1,621,001 a Prime Number?
A: No, 1,621,001 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 1621001 can be evenly divided by 1 17 71 79 289 1,207 1,343 5,609 20,519 22,831 95,353 and 1,621,001, with no remainder.
Since 1,621,001 cannot be divided by just 1 and 1,621,001, it is not a prime number.