Greatest Common Factor of 21, 70, 10, 149

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

• Greatest Common Factor of 21, 70, 10, 149 by common division method
• Greatest Common Factor of 21, 70, 10, 149 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 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 149

List of positive integer factors of 149 that divides 149 without a remainder.

1,149

Greatest Common Factor

We found the factors 21,70,10,149 . The biggest common factor number is the GCF number.
So the greatest common factor 21,70,10,149 is 1.

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

• GCF of 53, 84, 88, 847
• GCF of 50, 75, 59, 764
• GCF of 65, 45, 85, 839
• GCF of 24, 24, 83, 862
• GCF of 35, 79, 33, 867

1. What is the GCF of 21, 70, 10, 149?

Answer: GCF of 21, 70, 10, 149 is 1.

2. How to Find the GCF of 21, 70, 10, 149

Answer: Greatest Common Factor(GCF) of 21, 70, 10, 149 = 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, 10, 149) = 1.