Q: Is 1,565,671 a Prime Number?
A: Yes, 1,565,671 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1565671 can be evenly divided by 1 and 1,565,671, with no remainder.
Since 1,565,671 can be divided by just 1 and 1,565,671, it is a prime number.