Greatest Common Factor of 21, 70, 65, 148

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

• Greatest Common Factor of 21, 70, 65, 148 by common division method
• Greatest Common Factor of 21, 70, 65, 148 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 148

List of positive integer factors of 148 that divides 148 without a remainder.

1,2,4,37,74,148

Greatest Common Factor

We found the factors 21,70,65,148 . The biggest common factor number is the GCF number.
So the greatest common factor 21,70,65,148 is 1.

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

• GCF of 26, 54, 76, 710
• GCF of 37, 11, 32, 668
• GCF of 45, 29, 91, 699
• GCF of 59, 44, 58, 224
• GCF of 72, 65, 84, 772

1. What is the GCF of 21, 70, 65, 148?

Answer: GCF of 21, 70, 65, 148 is 1.

2. How to Find the GCF of 21, 70, 65, 148

Answer: Greatest Common Factor(GCF) of 21, 70, 65, 148 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 70, 65, 148) = 1.