Q: Is 400,005 a Composite Number?
A: Yes, 400,005 is a composite number.
The number 400,005 can be evenly divided by 1 3 5 9 15 27 45 135 2,963 8,889 14,815 26,667 44,445 80,001 133,335 and 400,005, with no remainder.
Since 400,005 cannot be divided by just 1 and 400,005, it is a composite number.