Q: Is 1,561,741 a Prime Number?
A: Yes, 1,561,741 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 1561741 can be evenly divided by 1 and 1,561,741, with no remainder.
Since 1,561,741 can be divided by just 1 and 1,561,741, it is a prime number.