Greatest Common Factor of 90, 79, 61, 49

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

• Greatest Common Factor of 90, 79, 61, 49 by common division method
• Greatest Common Factor of 90, 79, 61, 49 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Greatest Common Factor

We found the factors 90,79,61,49 . The biggest common factor number is the GCF number.
So the greatest common factor 90,79,61,49 is 1.

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

• GCF of 27, 94, 82, 24
• GCF of 76, 19, 20, 38
• GCF of 50, 38, 72, 58
• GCF of 17, 12, 31, 98
• GCF of 92, 64, 28, 42

1. What is the GCF of 90, 79, 61, 49?

Answer: GCF of 90, 79, 61, 49 is 1.

2. How to Find the GCF of 90, 79, 61, 49

Answer: Greatest Common Factor(GCF) of 90, 79, 61, 49 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 79, 61, 49) = 1.