Q: Is 2,142,105 a Composite Number?
A: Yes, 2,142,105 is a composite number.
The number 2,142,105 can be evenly divided by 1 3 5 7 15 21 23 35 69 105 115 161 345 483 805 887 2,415 2,661 4,435 6,209 13,305 18,627 20,401 31,045 61,203 93,135 102,005 142,807 306,015 428,421 714,035 and 2,142,105, with no remainder.
Since 2,142,105 cannot be divided by just 1 and 2,142,105, it is a composite number.