Greatest Common Factor of 45, 87, 68, 972

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

• Greatest Common Factor of 45, 87, 68, 972 by common division method
• Greatest Common Factor of 45, 87, 68, 972 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 45

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

1,3,5,9,15,45

Factors of 87

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

1,3,29,87

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 972

List of positive integer factors of 972 that divides 972 without a remainder.

1,2,3,4,6,9,12,18,27,36,54,81,108,162,243,324,486,972

Greatest Common Factor

We found the factors 45,87,68,972 . The biggest common factor number is the GCF number.
So the greatest common factor 45,87,68,972 is 1.

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

• GCF of 50, 73, 24, 697
• GCF of 98, 39, 11, 451
• GCF of 90, 63, 30, 277
• GCF of 92, 47, 65, 996
• GCF of 47, 19, 98, 400

1. What is the GCF of 45, 87, 68, 972?

Answer: GCF of 45, 87, 68, 972 is 1.

2. How to Find the GCF of 45, 87, 68, 972

Answer: Greatest Common Factor(GCF) of 45, 87, 68, 972 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 87, 68, 972) = 1.