Q: Is 1,201,780 a Prime Number?
A: No, 1,201,780 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 1201780 can be evenly divided by 1 2 4 5 10 20 60,089 120,178 240,356 300,445 600,890 and 1,201,780, with no remainder.
Since 1,201,780 cannot be divided by just 1 and 1,201,780, it is not a prime number.