What are the factors and prime factors of 378?

Answer 1

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

The 16 factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, and 378.

The factor pairs of 378 are 1 x 378, 2 x 189, 3 x 126, 6 x 63, 7 x 54, 9 x 42, 14 x 27, and 18 x 21.

The proper factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, and 189 or,

if the definition you are using excludes 1, they are 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, and 189.

The prime factors of 378 are 2, 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 3 distinct prime factors (listing each prime factor only once) of 378 are 2, 3, and 7.

The prime factorization of 378 is 2 x 3 x 3 x 3 x 7 or, in index form (in other words, using exponents), 2 x 33 x 7.

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.