Greatest Common Factor of 672, 665, 420

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

• Greatest Common Factor of 672, 665, 420 by common division method
• Greatest Common Factor of 672, 665, 420 with matching the biggest common factor

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∴ So the GCF of the given numbers is 7 = 7

Factors of 672

List of positive integer factors of 672 that divides 672 without a remainder.

1,2,3,4,6,7,8,12,14,16,21,24,28,32,42,48,56,84,96,112,168,224,336,672

Factors of 665

List of positive integer factors of 665 that divides 665 without a remainder.

1,5,7,19,35,95,133,665

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 672,665,420 . The biggest common factor number is the GCF number.
So the greatest common factor 672,665,420 is 7.

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

• GCF of 557, 437, 199
• GCF of 397, 670, 697
• GCF of 916, 247, 394
• GCF of 127, 937, 520
• GCF of 120, 872, 485

1. What is the GCF of 672, 665, 420?

Answer: GCF of 672, 665, 420 is 7.

2. How to Find the GCF of 672, 665, 420

Answer: Greatest Common Factor(GCF) of 672, 665, 420 = 7

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

Step 2: Then multiply all the prime factors GCF(672, 665, 420) = 7.