Greatest Common Factor of 49, 81, 64, 63

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

• Greatest Common Factor of 49, 81, 64, 63 by common division method
• Greatest Common Factor of 49, 81, 64, 63 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 49

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

1,7,49

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Greatest Common Factor

We found the factors 49,81,64,63 . The biggest common factor number is the GCF number.
So the greatest common factor 49,81,64,63 is 1.

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

• GCF of 17, 28, 68, 79
• GCF of 28, 26, 74, 66
• GCF of 41, 54, 66, 21
• GCF of 99, 58, 87, 72
• GCF of 46, 53, 19, 28

1. What is the GCF of 49, 81, 64, 63?

Answer: GCF of 49, 81, 64, 63 is 1.

2. How to Find the GCF of 49, 81, 64, 63

Answer: Greatest Common Factor(GCF) of 49, 81, 64, 63 = 1

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

Step 2: Then multiply all the prime factors GCF(49, 81, 64, 63) = 1.