What are the factor pairs of 121?

Answer 1

121 is a composite number. It has factors other than 1 and itself. It is not a Prime number.

The 3 factors of 121 are 1, 11, and 121.

Note: It is a square number (11 x 11), so it has an odd number of factors.

The factor pairs of 121 are 1 x 121 and 11 x 11.

The proper factors of 121 are 1 and 11 or,

if the definition you are using excludes 1, the only proper factor is 11.

The prime factors of 121 are 11 and 11. 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 only distinct prime factor (listing each prime factor only once) of 121 is 11.

The prime factorization of 121 is 11 x 11 or, in index form (in other words, using exponents), 112.

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.

Answer 2

(121,1)(11,11)

1. 121,1
2. 11,11

Answer 3

1 and 121

11 and 11