Find the LCM and GCF of 48 and 72. Then, write 48+72 as two factors, one is the GCF and the other is the sum of the two numbers that don’t have a common factor.

How to find the GCF of 48 and 72?

You will first find the prime factorization of 48 and 72. After we will calculate the factors of 48 and 72 and find the biggest common factor number .

Step-1: Prime Factorization of 48
Prime factors of 48 are 2, 3. Prime factorization of 48 in exponential form is:

48 = 24 × 31

Step-2: Prime Factorization of 72
Prime factors of 72 are 2, 3. Prime factorization of 72 in exponential form is:

72 = 23 × 32

Step-3: Factors of 48
List of positive integer factors of 48 that divides 48 without a remainder.

1, 2, 3, 4, 6, 8, 12, 16, 24

Step-4: Factors of 72
List of positive integer factors of 72 that divides 48 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36

Final Step: Greatest Common Factor Number
We found the factors and prime factorization of 48 and 72. The biggest common factor number is the GCF number.
So the greatest common factor 48 and 72 is 24.

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