Greatest Common Factor of 66, 72, 63, 245

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

• Greatest Common Factor of 66, 72, 63, 245 by common division method
• Greatest Common Factor of 66, 72, 63, 245 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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

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 63

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

1,3,7,9,21,63

Factors of 245

List of positive integer factors of 245 that divides 245 without a remainder.

1,5,7,35,49,245

Greatest Common Factor

We found the factors 66,72,63,245 . The biggest common factor number is the GCF number.
So the greatest common factor 66,72,63,245 is 1.

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

• GCF of 79, 42, 38, 655
• GCF of 75, 45, 43, 116
• GCF of 91, 14, 65, 620
• GCF of 56, 51, 25, 938
• GCF of 97, 19, 31, 265

1. What is the GCF of 66, 72, 63, 245?

Answer: GCF of 66, 72, 63, 245 is 1.

2. How to Find the GCF of 66, 72, 63, 245

Answer: Greatest Common Factor(GCF) of 66, 72, 63, 245 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 72, 63, 245) = 1.