Q: Is 1,421,673 a Prime Number?
A: No, 1,421,673 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 1421673 can be evenly divided by 1 3 11 33 67 201 643 737 1,929 2,211 7,073 21,219 43,081 129,243 473,891 and 1,421,673, with no remainder.
Since 1,421,673 cannot be divided by just 1 and 1,421,673, it is not a prime number.