Q: Is 8,438,125 a Prime Number?
A: No, 8,438,125 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 8438125 can be evenly divided by 1 5 23 25 115 125 575 587 625 2,875 2,935 13,501 14,375 14,675 67,505 73,375 337,525 366,875 1,687,625 and 8,438,125, with no remainder.
Since 8,438,125 cannot be divided by just 1 and 8,438,125, it is not a prime number.