Q: Is 3,876,021 a Prime Number?
A: No, 3,876,021 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 3876021 can be evenly divided by 1 3 9 269 807 1,601 2,421 4,803 14,409 430,669 1,292,007 and 3,876,021, with no remainder.
Since 3,876,021 cannot be divided by just 1 and 3,876,021, it is not a prime number.