181 is prime: its only factors are one and itself.
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neither prime or composite
It is prime
It would be impossible to list them all, since numbers go on forever, but here are some of them: 2 - Prime 3 - Prime 4 - Composite 5 - Prime 6 - Composite 7 - Prime 8 - Composite 9 - Composite 10 - Composite 11 - Prime 12 - Composite 13 - Prime 14 - Composite 15 - Composite 16 - Composite 17 - Prime 18 - Composite 19 - Prime 20 - Composite 21 - Composite 22 - Composite 23 - Prime 24 - Composite 25 - Composite 26 - Composite 27 - Composite 28 - Composite 29 - Prime 30 - Composite 31 - Prime 32 - Composite 33 - Composite 34 - Composite 35 - Composite 36 - Composite 37 - Prime 38 - Composite 39 - Composite 40 - Composite 41 - Prime 42 - Composite 43 - Prime 44 - Composite 45 - Composite 46 - Composite 47 - Prime 48 - Composite 49 - Composite 50 - Composite
181 is a prime number. The only two factors of a prime number are 1 and itself.The two factors of 181 are 1 and 181. There are only two factors of a prime number.The only factor pair of 181 is 1 x 181. There is only one factor pair of a prime number.The proper factors of 181 are only 1 or,if the definition you are using excludes 1, there are none.The only prime factor of 181 is 181. There is only one prime factor of a prime number - itself.The distinct prime factor (listing each prime factor only once) of 181 is also 181.The prime factorization of 181 is 181. In some cases, to emphasize that it is prime, you might write the prime factorization as 1 x 181.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
The factors of 181 are 1 and 181, as 181 is a prime number. Prime numbers are numbers that are only divisible by 1 and themselves. In this case, since 181 is only divisible by 1 and 181, those are the only factors of 181.