Q: Is 2,140,521 a Prime Number?
A: No, 2,140,521 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 2140521 can be evenly divided by 1 3 17 19 47 51 57 141 323 799 893 969 2,209 2,397 2,679 6,627 15,181 37,553 41,971 45,543 112,659 125,913 713,507 and 2,140,521, with no remainder.
Since 2,140,521 cannot be divided by just 1 and 2,140,521, it is not a prime number.