Greatest Common Factor of 66, 21, 87, 975

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

• Greatest Common Factor of 66, 21, 87, 975 by common division method
• Greatest Common Factor of 66, 21, 87, 975 with matching the biggest common factor

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

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 87

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

1,3,29,87

Factors of 975

List of positive integer factors of 975 that divides 975 without a remainder.

1,3,5,13,15,25,39,65,75,195,325,975

Greatest Common Factor

We found the factors 66,21,87,975 . The biggest common factor number is the GCF number.
So the greatest common factor 66,21,87,975 is 3.

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

• GCF of 60, 49, 60, 507
• GCF of 35, 90, 74, 458
• GCF of 38, 69, 72, 906
• GCF of 84, 77, 28, 689
• GCF of 41, 19, 59, 585

1. What is the GCF of 66, 21, 87, 975?

Answer: GCF of 66, 21, 87, 975 is 3.

2. How to Find the GCF of 66, 21, 87, 975

Answer: Greatest Common Factor(GCF) of 66, 21, 87, 975 = 3

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

Step 2: Then multiply all the prime factors GCF(66, 21, 87, 975) = 3.