A composite number is any number greater than one that has more factors than one and itself.

Examples include 4, 15, 348, and 7303.

en.wikipedia.org/wiki/Composite_number

A composite number is a positive integer that can be formed by multiplying
together two smaller positive integers. Equivalently, it is a positive integer that
has at ...

www.mathsisfun.com/definitions/composite-number.html

A whole number that can be divided evenly by numbers other than 1 or itself.
Example: 9 can be divided evenly by 3 (as well as 1 and 9), so 9 is a composite ...

www.mathsisfun.com/prime-composite-number.html

But 6 can be divided evenly by 1, 2, 3 and 6 so it is NOT a prime number (it is a
composite number). Let me explain ... Some whole numbers can be divided up ...

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-numbers/e/composite_numbers

Identify composite numbers less than 100. ... Which of these numbers is
composite? 3 5 , 3 7 , 4 3 , 6 7 , 7 3 \large{35,\ 37,\ 43,\ 67,\ 73} 35, 37, 43, 67, 73
35, ...

mathworld.wolfram.com/CompositeNumber.html

The first few composite numbers (sometimes called "composites" for short) are 4,
6, 8, 9, 10, 12, 14, 15, 16, ... (OEIS A002808), whose prime decompositions are ...

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-numbers/v/recognizing-prime-numbers

Can you recognize the prime numbers in this group of numbers? Which are
prime, composite, or neither?

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-numbers/a/prime-composite-numbers

Learn about prime and composite numbers and practice identifying them.

www.mathwarehouse.com/arithmetic/numbers/what-is-a-composite-number.php

A composite number is a positive integer that has a factor other than 1 and itself.
For instance, 6 is a composite number because: it is positive; it has a factor ...

oeis.org/wiki/Composite_numbers

Sep 1, 2014 ... The composite numbers are integers having at least two prime factors, whereas a
prime number has a single prime factor (itself), and the unit 1 ...