Q: Is 445,816 a Prime Number?
A: No, 445,816 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 445816 can be evenly divided by 1 2 4 7 8 14 19 28 38 56 76 133 152 266 419 532 838 1,064 1,676 2,933 3,352 5,866 7,961 11,732 15,922 23,464 31,844 55,727 63,688 111,454 222,908 and 445,816, with no remainder.
Since 445,816 cannot be divided by just 1 and 445,816, it is not a prime number.