Q: Is 1,261,425 a Prime Number?
A: No, 1,261,425 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 1261425 can be evenly divided by 1 3 5 11 15 25 33 55 75 121 139 165 275 363 417 605 695 825 1,529 1,815 2,085 3,025 3,475 4,587 7,645 9,075 10,425 16,819 22,935 38,225 50,457 84,095 114,675 252,285 420,475 and 1,261,425, with no remainder.
Since 1,261,425 cannot be divided by just 1 and 1,261,425, it is not a prime number.