Q: Is 426,664 a Prime Number?
A: No, 426,664 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 426664 can be evenly divided by 1 2 4 7 8 14 19 28 38 56 76 133 152 266 401 532 802 1,064 1,604 2,807 3,208 5,614 7,619 11,228 15,238 22,456 30,476 53,333 60,952 106,666 213,332 and 426,664, with no remainder.
Since 426,664 cannot be divided by just 1 and 426,664, it is not a prime number.