Q: Is 128,640 a Composite Number?

 A: Yes, 128,640 is a composite number.

Why is 128,640 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 128,640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 67 80 96 120 128 134 160 192 201 240 268 320 335 384 402 480 536 640 670 804 960 1,005 1,072 1,340 1,608 1,920 2,010 2,144 2,680 3,216 4,020 4,288 5,360 6,432 8,040 8,576 10,720 12,864 16,080 21,440 25,728 32,160 42,880 64,320 and 128,640, with no remainder.

Since 128,640 cannot be divided by just 1 and 128,640, it is a composite number.


More Examples

Number 128,638128,639128,641128,642
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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