Q: Is 422,172 a Prime Number?
A: No, 422,172 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 422172 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 1,303 2,606 3,909 5,212 7,818 11,727 15,636 23,454 35,181 46,908 70,362 105,543 140,724 211,086 and 422,172, with no remainder.
Since 422,172 cannot be divided by just 1 and 422,172, it is not a prime number.