Greatest Common Factor of 63, 84, 105

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

• Greatest Common Factor of 63, 84, 105 by common division method
• Greatest Common Factor of 63, 84, 105 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 x 7 = 21

Factors of 63

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

1,3,7,9,21,63

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 105

List of positive integer factors of 105 that divides 105 without a remainder.

1,3,5,7,15,21,35,105

Greatest Common Factor

We found the factors 63,84,105 . The biggest common factor number is the GCF number.
So the greatest common factor 63,84,105 is 21.

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

• GCF of 24, 21, 446
• GCF of 40, 91, 140
• GCF of 38, 98, 144
• GCF of 73, 18, 496
• GCF of 41, 46, 926

1. What is the GCF of 63, 84, 105?

Answer: GCF of 63, 84, 105 is 21.

2. How to Find the GCF of 63, 84, 105

Answer: Greatest Common Factor(GCF) of 63, 84, 105 = 21

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

Step 2: Then multiply all the prime factors GCF(63, 84, 105) = 21.