Q: Is 1,000,398 a Prime Number?
A: No, 1,000,398 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 1000398 can be evenly divided by 1 2 3 6 7 14 21 42 23,819 47,638 71,457 142,914 166,733 333,466 500,199 and 1,000,398, with no remainder.
Since 1,000,398 cannot be divided by just 1 and 1,000,398, it is not a prime number.