Q: Is 400,242 a Prime Number?
A: No, 400,242 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 400242 can be evenly divided by 1 2 3 6 41 82 123 246 1,627 3,254 4,881 9,762 66,707 133,414 200,121 and 400,242, with no remainder.
Since 400,242 cannot be divided by just 1 and 400,242, it is not a prime number.