Greatest Common Factor of 70, 65, 20, 253

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

• Greatest Common Factor of 70, 65, 20, 253 by common division method
• Greatest Common Factor of 70, 65, 20, 253 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 65

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

1,5,13,65

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 253

List of positive integer factors of 253 that divides 253 without a remainder.

1,11,23,253

Greatest Common Factor

We found the factors 70,65,20,253 . The biggest common factor number is the GCF number.
So the greatest common factor 70,65,20,253 is 1.

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

• GCF of 20, 60, 24, 978
• GCF of 58, 90, 93, 399
• GCF of 89, 70, 27, 936
• GCF of 11, 72, 60, 108
• GCF of 88, 55, 97, 604

1. What is the GCF of 70, 65, 20, 253?

Answer: GCF of 70, 65, 20, 253 is 1.

2. How to Find the GCF of 70, 65, 20, 253

Answer: Greatest Common Factor(GCF) of 70, 65, 20, 253 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 65, 20, 253) = 1.