No they are not. They have more than the number 1 as a common factor. They also have the number 3 as a common factor.
GCF stands for Greatest Common Factor. This means that the GCF of 45 and 75 will be the greatest common factor of 45 and 75. The prime factorization of 45 is 3^2*5. Thus, a number is a factor of 45 if and only if it does not have more than 2 3s in its prime factorization, more than one 5 in its prime factorization, or any other prime factor. The prime factorization of 75 is 3*5^2. Thus, a number is a factor of 75 if and only if it does not have more than one 3 in its prime factorization, more than 2 5s in its prime factorization, or any other prime factor. Combining those two conclusions together, we get that if a number is a common factor of 45 and 75 if and only if it does not have more than one 3 in its prime factorization, more than one 5 in its prime factorization, or any other prime factor. Since multiplying by a 3 or a 5 will only increase the value of a number, there is no reason to not include them. Thus, the GCF of 45 and 75 is 3*5 or 15.
A number that has only two factors is prime. A number that has more than two factors is composite.
725 is composite because it has more than 2 factors, not the "just the one and itself" factor thing that makes a number prime.
A composite is any number that has a prime factor smaller than itself and greater than 1.
50 is not a prime factor or a prime number because it has more than two factors and so it is a composite number
A prime factor of a number is a prime number that evenly divides the number. A composite number is a number having more factors than just 1 and itself.
by using a prime factor tree
No they are not. They have more than the number 1 as a common factor. They also have the number 3 as a common factor.
it is a composite number because it has more than one factor to it
GCF stands for Greatest Common Factor. This means that the GCF of 45 and 75 will be the greatest common factor of 45 and 75. The prime factorization of 45 is 3^2*5. Thus, a number is a factor of 45 if and only if it does not have more than 2 3s in its prime factorization, more than one 5 in its prime factorization, or any other prime factor. The prime factorization of 75 is 3*5^2. Thus, a number is a factor of 75 if and only if it does not have more than one 3 in its prime factorization, more than 2 5s in its prime factorization, or any other prime factor. Combining those two conclusions together, we get that if a number is a common factor of 45 and 75 if and only if it does not have more than one 3 in its prime factorization, more than one 5 in its prime factorization, or any other prime factor. Since multiplying by a 3 or a 5 will only increase the value of a number, there is no reason to not include them. Thus, the GCF of 45 and 75 is 3*5 or 15.
A prime number has two factors. A composite number has more than two factors. Since the number 1 has only one factor, it is neither a prime nor composite number.
A number that has only two factors is prime. A number that has more than two factors is composite.
A composite number is the product of two or more prime numbers. A prime number has exactly two factors, 1 and the number itself; a composite number has at least one more factor than the two that a prime number has.
Factor it. If it has only two factors, it's prime. If it has more than two, it's composite.
725 is composite because it has more than 2 factors, not the "just the one and itself" factor thing that makes a number prime.
The prime factor of 7 is 7. The prime factor of 8 is 2. The prime factor of 9 is 3. The prime factors of 10 are 2 and 5. The prime factor of 11 is 11.