Q: Is 42,780 a Composite Number?

 A: Yes, 42,780 is a composite number.

Why is 42,780 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 42,780 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 23 30 31 46 60 62 69 92 93 115 124 138 155 186 230 276 310 345 372 460 465 620 690 713 930 1,380 1,426 1,860 2,139 2,852 3,565 4,278 7,130 8,556 10,695 14,260 21,390 and 42,780, with no remainder.

Since 42,780 cannot be divided by just 1 and 42,780, it is a composite number.


More Examples

Number 42,77842,77942,78142,782
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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