Q: Is 422,408 a Prime Number?
A: No, 422,408 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 422408 can be evenly divided by 1 2 4 7 8 14 19 28 38 56 76 133 152 266 397 532 794 1,064 1,588 2,779 3,176 5,558 7,543 11,116 15,086 22,232 30,172 52,801 60,344 105,602 211,204 and 422,408, with no remainder.
Since 422,408 cannot be divided by just 1 and 422,408, it is not a prime number.