Q: Is 1,380,921 a Prime Number?
A: No, 1,380,921 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 1380921 can be evenly divided by 1 3 41 103 109 123 309 327 4,223 4,469 11,227 12,669 13,407 33,681 460,307 and 1,380,921, with no remainder.
Since 1,380,921 cannot be divided by just 1 and 1,380,921, it is not a prime number.