Q: Is 612,423 a Prime Number?
A: No, 612,423 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 612423 can be evenly divided by 1 3 7 9 21 63 9,721 29,163 68,047 87,489 204,141 and 612,423, with no remainder.
Since 612,423 cannot be divided by just 1 and 612,423, it is not a prime number.