Q: Is 1,200,521 a Prime Number?
A: No, 1,200,521 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 1200521 can be evenly divided by 1 7 41 47 89 287 329 623 1,927 3,649 4,183 13,489 25,543 29,281 171,503 and 1,200,521, with no remainder.
Since 1,200,521 cannot be divided by just 1 and 1,200,521, it is not a prime number.