Greatest Common Factor of 42, 78, 58, 505

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

• Greatest Common Factor of 42, 78, 58, 505 by common division method
• Greatest Common Factor of 42, 78, 58, 505 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Factors of 505

List of positive integer factors of 505 that divides 505 without a remainder.

1,5,101,505

Greatest Common Factor

We found the factors 42,78,58,505 . The biggest common factor number is the GCF number.
So the greatest common factor 42,78,58,505 is 1.

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

• GCF of 67, 98, 18, 161
• GCF of 60, 30, 92, 111
• GCF of 94, 63, 29, 382
• GCF of 94, 59, 16, 813
• GCF of 51, 68, 45, 916

1. What is the GCF of 42, 78, 58, 505?

Answer: GCF of 42, 78, 58, 505 is 1.

2. How to Find the GCF of 42, 78, 58, 505

Answer: Greatest Common Factor(GCF) of 42, 78, 58, 505 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 78, 58, 505) = 1.