Greatest Common Factor of 21, 59, 70, 161

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

• Greatest Common Factor of 21, 59, 70, 161 by common division method
• Greatest Common Factor of 21, 59, 70, 161 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 59

List of positive integer factors of 59 that divides 59 without a remainder.

1,59

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 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Greatest Common Factor

We found the factors 21,59,70,161 . The biggest common factor number is the GCF number.
So the greatest common factor 21,59,70,161 is 1.

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

• GCF of 73, 49, 76, 828
• GCF of 30, 28, 68, 949
• GCF of 37, 35, 39, 175
• GCF of 98, 52, 47, 688
• GCF of 41, 26, 42, 558

1. What is the GCF of 21, 59, 70, 161?

Answer: GCF of 21, 59, 70, 161 is 1.

2. How to Find the GCF of 21, 59, 70, 161

Answer: Greatest Common Factor(GCF) of 21, 59, 70, 161 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 59, 70, 161) = 1.