What are the factors and prime factors of 990?

Answer 1

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

The 24 factors of 990 are 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, and 990.

The proper factors of 990 are 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, and 495 or,

if the definition you are using excludes 1, they are 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, and 495.

The prime factors of 990 are 2, 3, 3, 5, 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 4 distinct prime factors (listing each prime factor only once) of 990 are 2, 3, 5, and 11.

The prime factorization of 990 is 2 x 3 x 3 x 5 x 11 or, in index form (in other words, using exponents), 2 x 32 x 5 x 11.

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.