Q: Is 1,405,420 a Prime Number?
A: No, 1,405,420 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 1405420 can be evenly divided by 1 2 4 5 10 20 70,271 140,542 281,084 351,355 702,710 and 1,405,420, with no remainder.
Since 1,405,420 cannot be divided by just 1 and 1,405,420, it is not a prime number.