Greatest Common Factor of 45, 75, 90, 123

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 45, 75, 90, 123 by common division method
• Greatest Common Factor of 45, 75, 90, 123 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Greatest Common Factor

We found the factors 45,75,90,123 . The biggest common factor number is the GCF number.
So the greatest common factor 45,75,90,123 is 3.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 17, 73, 15, 885
• GCF of 65, 42, 31, 179
• GCF of 66, 53, 59, 668
• GCF of 23, 32, 98, 179
• GCF of 17, 39, 27, 668

1. What is the GCF of 45, 75, 90, 123?

Answer: GCF of 45, 75, 90, 123 is 3.

2. How to Find the GCF of 45, 75, 90, 123

Answer: Greatest Common Factor(GCF) of 45, 75, 90, 123 = 3

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(45, 75, 90, 123) = 3.