Q: Is 400,344 a Prime Number?
A: No, 400,344 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 400344 can be evenly divided by 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 2,383 4,766 7,149 9,532 14,298 16,681 19,064 28,596 33,362 50,043 57,192 66,724 100,086 133,448 200,172 and 400,344, with no remainder.
Since 400,344 cannot be divided by just 1 and 400,344, it is not a prime number.