Q: Is 1,387,638 a Composite Number?
A: Yes, 1,387,638 is a composite number.
The number 1,387,638 can be evenly divided by 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 3,671 7,342 11,013 22,026 25,697 33,039 51,394 66,078 77,091 99,117 154,182 198,234 231,273 462,546 693,819 and 1,387,638, with no remainder.
Since 1,387,638 cannot be divided by just 1 and 1,387,638, it is a composite number.