Greatest Common Factor of 65, 30, 84, 155

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

• Greatest Common Factor of 65, 30, 84, 155 by common division method
• Greatest Common Factor of 65, 30, 84, 155 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 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Greatest Common Factor

We found the factors 65,30,84,155 . The biggest common factor number is the GCF number.
So the greatest common factor 65,30,84,155 is 1.

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

• GCF of 36, 25, 14, 471
• GCF of 56, 21, 93, 174
• GCF of 43, 76, 22, 810
• GCF of 31, 42, 77, 446
• GCF of 63, 59, 23, 789

1. What is the GCF of 65, 30, 84, 155?

Answer: GCF of 65, 30, 84, 155 is 1.

2. How to Find the GCF of 65, 30, 84, 155

Answer: Greatest Common Factor(GCF) of 65, 30, 84, 155 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 30, 84, 155) = 1.