What are the factors and prime factors of 189?

189 is a composite number because it has factors other than 1 and itself. It is not a Prime number.

The 8 factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189.

The factor pairs of 189 are 1 x 189, 3 x 63, 7 x 27, and 9 x 21.

The proper factors of 189 are 1, 3, 7, 9, 21, 27, and 63 or,

if the definition you are using excludes 1, they are 3, 7, 9, 21, 27, and 63.

The prime factors of 189 are 3, 3, 3, and 7. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.

The distinct prime factors of 189 are 3 and 7.

The prime factorization of 189 is 3 x 3 x 3 x 7 or, in exponential form, 33 x 7.
33 x 7 = 189.