Greatest Common Factor of 42, 75, 661

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

• Greatest Common Factor of 42, 75, 661 by common division method
• Greatest Common Factor of 42, 75, 661 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 661

List of positive integer factors of 661 that divides 661 without a remainder.

1,661

Greatest Common Factor

We found the factors 42,75,661 . The biggest common factor number is the GCF number.
So the greatest common factor 42,75,661 is 1.

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

• GCF of 20, 87, 786
• GCF of 28, 83, 733
• GCF of 88, 57, 763
• GCF of 25, 10, 837
• GCF of 96, 96, 201

1. What is the GCF of 42, 75, 661?

Answer: GCF of 42, 75, 661 is 1.

2. How to Find the GCF of 42, 75, 661

Answer: Greatest Common Factor(GCF) of 42, 75, 661 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 75, 661) = 1.