Greatest Common Factor of 40, 66, 63, 172

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

• Greatest Common Factor of 40, 66, 63, 172 by common division method
• Greatest Common Factor of 40, 66, 63, 172 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

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 63

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

1,3,7,9,21,63

Factors of 172

List of positive integer factors of 172 that divides 172 without a remainder.

1,2,4,43,86,172

Greatest Common Factor

We found the factors 40,66,63,172 . The biggest common factor number is the GCF number.
So the greatest common factor 40,66,63,172 is 1.

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

• GCF of 42, 21, 11, 520
• GCF of 50, 57, 98, 360
• GCF of 58, 36, 30, 327
• GCF of 77, 22, 50, 179
• GCF of 76, 18, 51, 918

1. What is the GCF of 40, 66, 63, 172?

Answer: GCF of 40, 66, 63, 172 is 1.

2. How to Find the GCF of 40, 66, 63, 172

Answer: Greatest Common Factor(GCF) of 40, 66, 63, 172 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 66, 63, 172) = 1.