Greatest Common Factor of 87, 72, 138

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

• Greatest Common Factor of 87, 72, 138 by common division method
• Greatest Common Factor of 87, 72, 138 with matching the biggest common factor

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

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Greatest Common Factor

We found the factors 87,72,138 . The biggest common factor number is the GCF number.
So the greatest common factor 87,72,138 is 3.

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

• GCF of 61, 68, 744
• GCF of 57, 81, 569
• GCF of 17, 98, 955
• GCF of 13, 79, 165
• GCF of 28, 66, 620

1. What is the GCF of 87, 72, 138?

Answer: GCF of 87, 72, 138 is 3.

2. How to Find the GCF of 87, 72, 138

Answer: Greatest Common Factor(GCF) of 87, 72, 138 = 3

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

Step 2: Then multiply all the prime factors GCF(87, 72, 138) = 3.