Greatest Common Factor of 63, 21, 42, 103

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

• Greatest Common Factor of 63, 21, 42, 103 by common division method
• Greatest Common Factor of 63, 21, 42, 103 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 63

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

1,3,7,9,21,63

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 103

List of positive integer factors of 103 that divides 103 without a remainder.

1,103

Greatest Common Factor

We found the factors 63,21,42,103 . The biggest common factor number is the GCF number.
So the greatest common factor 63,21,42,103 is 1.

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

• GCF of 40, 31, 22, 903
• GCF of 97, 80, 49, 791
• GCF of 25, 35, 23, 891
• GCF of 68, 51, 95, 121
• GCF of 42, 78, 73, 202

1. What is the GCF of 63, 21, 42, 103?

Answer: GCF of 63, 21, 42, 103 is 1.

2. How to Find the GCF of 63, 21, 42, 103

Answer: Greatest Common Factor(GCF) of 63, 21, 42, 103 = 1

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

Step 2: Then multiply all the prime factors GCF(63, 21, 42, 103) = 1.