Greatest Common Factor of 38, 61, 61, 72, 646

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

• Greatest Common Factor of 38, 61, 61, 72, 646 by common division method
• Greatest Common Factor of 38, 61, 61, 72, 646 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 61

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

1,61

Factors of 61

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

1,61

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 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Greatest Common Factor

We found the factors 38,61,61,72,646 . The biggest common factor number is the GCF number.
So the greatest common factor 38,61,61,72,646 is 1.

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

• GCF of 35, 61, 62, 71, 513
• GCF of 68, 68, 49, 56, 961
• GCF of 85, 50, 19, 49, 971
• GCF of 62, 36, 79, 55, 441
• GCF of 71, 12, 92, 35, 262

1. What is the GCF of 38, 61, 61, 72, 646?

Answer: GCF of 38, 61, 61, 72, 646 is 1.

2. How to Find the GCF of 38, 61, 61, 72, 646

Answer: Greatest Common Factor(GCF) of 38, 61, 61, 72, 646 = 1

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

Step 2: Then multiply all the prime factors GCF(38, 61, 61, 72, 646) = 1.