What are the factors and prime factors of 640?

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

The 16 factors of 640 are 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640.

The prime factors of 640 are 2, 2, 2, 2, 2, 2, 2, and 5.

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 2 distinct prime factors (listing each prime factor only once) of 640 are 2 and 5.

The prime factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 or, in index form (in other Words, using exponents), 27 x 5.

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.