Q: Is 25,438 a Prime Number?
A: No, 25,438 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 25438 can be evenly divided by 1 2 7 14 23 46 79 158 161 322 553 1,106 1,817 3,634 12,719 and 25,438, with no remainder.
Since 25,438 cannot be divided by just 1 and 25,438, it is not a prime number.