Q: Is 638,740 a Composite Number?
A: Yes, 638,740 is a composite number.
The number 638,740 can be evenly divided by 1 2 4 5 10 20 109 218 293 436 545 586 1,090 1,172 1,465 2,180 2,930 5,860 31,937 63,874 127,748 159,685 319,370 and 638,740, with no remainder.
Since 638,740 cannot be divided by just 1 and 638,740, it is a composite number.