81 is not prime. Its prime factorization is 3x3x3x3.
Chat with our AI personalities
A composite factor is a factor that is a composite number, as opposed to a prime factor which is a factor that is a prime number.
83 is prime. No tree.
139 is a prime number. Prime numbers have only one prime factor: the numbers themselves.
581 is a composite number because it has factors other than 1 and itself. It is not a prime number.The four factors of 581 are 1, 7, 83, and 581.The factor pairs of 581 are 1 x 581 and 7 x 83.The proper factors of 581 are 1, 7, and 83 or,if the definition you are using excludes 1, they are 7 and 83.The prime factors of 581 are 7 and 83.The two distinct prime factors (listing each prime factor only once) of 581 are 7 and 83.The prime factorization of 581 is 7 x 83.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.
Any factor that isn't prime.