Composite Number

Composite number is a whole number that can be made by multiplying other whole numbers.

Example:

10 can be made by 5 × 2 so is a composite number.

Not Composite number

5 = 1 × 5, Is not composite number because 1 × 5 isn’t using other whole numbers

7 = 2 × 3.5, Is not composite number because 3.5 isn’t whole numbers.

All whole numbers above 1 are either composite or prime.

Table of Prime and Composite numbers

Table of Prime numbers and Composite numbers from 2 to 50

NumberCompositionPrime or Composite
21 × 2Prime
31 × 3Prime
42 × 2Composite
51 × 5Prime
62 × 3Composite
71 × 7Prime
82 × 4Composite
93 × 3Composite
102 × 5Composite
111 × 11Prime
122 × 6Composite
131 × 13Prime
142 × 7Composite
153 × 5Composite
162 × 8Composite
171 × 17Prime
182 × 9Composite
191 × 19Prime
202 × 10Composite
213 × 7Composite
222 × 11Composite
231 × 23Prime
242 × 12Composite
255 × 5 Composite
262 × 13Composite
273 × 9Composite
282 × 14Composite
291 × 29Prime
302 × 15Composite
311 × 31Prime
322 × 16Composite
333 × 11Composite
342 × 17Composite
355 × 7Composite
362 × 18Composite
371 × 37Prime
382 × 19Composite
393 × 13Composite
402 × 20Composite
411 × 41Prime
422 × 21Composite
431 × 43Prime
442 × 22Composite
453 × 15Composite
462 × 23Composite
471 × 47Prime
482 × 24Composite
497 × 7Composite
502 × 25Composite

Learn More

Positive and Negative Numbers

Cardinal and Ordinal Numbers Chart

Irrational Numbers

Exponents

Numbers Index

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