Q: Is 1,243,672 a Prime Number?
A: No, 1,243,672 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 1243672 can be evenly divided by 1 2 4 8 83 166 332 664 1,873 3,746 7,492 14,984 155,459 310,918 621,836 and 1,243,672, with no remainder.
Since 1,243,672 cannot be divided by just 1 and 1,243,672, it is not a prime number.