Q: Is 1,100,043 a Prime Number?
A: No, 1,100,043 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 1100043 can be evenly divided by 1 3 7 9 19 21 57 63 133 171 399 919 1,197 2,757 6,433 8,271 17,461 19,299 52,383 57,897 122,227 157,149 366,681 and 1,100,043, with no remainder.
Since 1,100,043 cannot be divided by just 1 and 1,100,043, it is not a prime number.