Q: Is 1,621,007 a Prime Number?
A: No, 1,621,007 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 1621007 can be evenly divided by 1 37 193 227 7,141 8,399 43,811 and 1,621,007, with no remainder.
Since 1,621,007 cannot be divided by just 1 and 1,621,007, it is not a prime number.