Q: Is 400,477 a Prime Number?
A: No, 400,477 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 400477 can be evenly divided by 1 7 11 49 77 539 743 5,201 8,173 36,407 57,211 and 400,477, with no remainder.
Since 400,477 cannot be divided by just 1 and 400,477, it is not a prime number.