Q: Is 1,261,071 a Prime Number?
A: No, 1,261,071 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 1261071 can be evenly divided by 1 3 7 9 21 37 63 111 259 333 541 777 1,623 2,331 3,787 4,869 11,361 20,017 34,083 60,051 140,119 180,153 420,357 and 1,261,071, with no remainder.
Since 1,261,071 cannot be divided by just 1 and 1,261,071, it is not a prime number.