Q: Is 1,242,580 a Prime Number?
A: No, 1,242,580 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 1242580 can be evenly divided by 1 2 4 5 10 20 62,129 124,258 248,516 310,645 621,290 and 1,242,580, with no remainder.
Since 1,242,580 cannot be divided by just 1 and 1,242,580, it is not a prime number.