Q: Is 1,242,288 a Prime Number?
A: No, 1,242,288 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 1242288 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 8,627 17,254 25,881 34,508 51,762 69,016 77,643 103,524 138,032 155,286 207,048 310,572 414,096 621,144 and 1,242,288, with no remainder.
Since 1,242,288 cannot be divided by just 1 and 1,242,288, it is not a prime number.