Greatest Common Factor of 66, 99, 42, 40, 857

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

• Greatest Common Factor of 66, 99, 42, 40, 857 by common division method
• Greatest Common Factor of 66, 99, 42, 40, 857 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 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

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 40

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

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

Factors of 857

List of positive integer factors of 857 that divides 857 without a remainder.

1,857

Greatest Common Factor

We found the factors 66,99,42,40,857 . The biggest common factor number is the GCF number.
So the greatest common factor 66,99,42,40,857 is 1.

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

• GCF of 59, 60, 69, 91, 460
• GCF of 20, 95, 63, 78, 146
• GCF of 94, 39, 17, 74, 375
• GCF of 38, 27, 62, 15, 327
• GCF of 98, 21, 25, 99, 144

1. What is the GCF of 66, 99, 42, 40, 857?

Answer: GCF of 66, 99, 42, 40, 857 is 1.

2. How to Find the GCF of 66, 99, 42, 40, 857

Answer: Greatest Common Factor(GCF) of 66, 99, 42, 40, 857 = 1

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

Step 2: Then multiply all the prime factors GCF(66, 99, 42, 40, 857) = 1.