Greatest Common Factor of 55, 72, 309, 156

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

• Greatest Common Factor of 55, 72, 309, 156 by common division method
• Greatest Common Factor of 55, 72, 309, 156 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 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

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 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 156

List of positive integer factors of 156 that divides 156 without a remainder.

1,2,3,4,6,12,13,26,39,52,78,156

Greatest Common Factor

We found the factors 55,72,309,156 . The biggest common factor number is the GCF number.
So the greatest common factor 55,72,309,156 is 1.

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

• GCF of 60, 98, 322, 297
• GCF of 82, 36, 417, 470
• GCF of 47, 40, 446, 595
• GCF of 11, 35, 292, 415
• GCF of 80, 97, 250, 254

1. What is the GCF of 55, 72, 309, 156?

Answer: GCF of 55, 72, 309, 156 is 1.

2. How to Find the GCF of 55, 72, 309, 156

Answer: Greatest Common Factor(GCF) of 55, 72, 309, 156 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 72, 309, 156) = 1.