Q: Is 400,216 a Prime Number?
A: No, 400,216 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 400216 can be evenly divided by 1 2 4 8 19 38 76 152 2,633 5,266 10,532 21,064 50,027 100,054 200,108 and 400,216, with no remainder.
Since 400,216 cannot be divided by just 1 and 400,216, it is not a prime number.