Greatest Common Factor of 53, 42, 30, 40

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

• Greatest Common Factor of 53, 42, 30, 40 by common division method
• Greatest Common Factor of 53, 42, 30, 40 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 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 40

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

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

Greatest Common Factor

We found the factors 53,42,30,40 . The biggest common factor number is the GCF number.
So the greatest common factor 53,42,30,40 is 1.

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

• GCF of 13, 21, 49, 94
• GCF of 61, 65, 52, 39
• GCF of 57, 94, 17, 20
• GCF of 44, 50, 46, 87
• GCF of 18, 49, 21, 79

1. What is the GCF of 53, 42, 30, 40?

Answer: GCF of 53, 42, 30, 40 is 1.

2. How to Find the GCF of 53, 42, 30, 40

Answer: Greatest Common Factor(GCF) of 53, 42, 30, 40 = 1

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

Step 2: Then multiply all the prime factors GCF(53, 42, 30, 40) = 1.