Greatest Common Factor of 42, 455, 661

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

• Greatest Common Factor of 42, 455, 661 by common division method
• Greatest Common Factor of 42, 455, 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 455

List of positive integer factors of 455 that divides 455 without a remainder.

1,5,7,13,35,65,91,455

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 42,455,661 . The biggest common factor number is the GCF number.
So the greatest common factor 42,455,661 is 1.

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

• GCF of 99, 758, 596
• GCF of 63, 949, 393
• GCF of 21, 463, 966
• GCF of 33, 894, 545
• GCF of 92, 915, 453

1. What is the GCF of 42, 455, 661?

Answer: GCF of 42, 455, 661 is 1.

2. How to Find the GCF of 42, 455, 661

Answer: Greatest Common Factor(GCF) of 42, 455, 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, 455, 661) = 1.