Greatest Common Factor of 153, 561, 121

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

• Greatest Common Factor of 153, 561, 121 by common division method
• Greatest Common Factor of 153, 561, 121 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 153

List of positive integer factors of 153 that divides 153 without a remainder.

1,3,9,17,51,153

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Factors of 121

List of positive integer factors of 121 that divides 121 without a remainder.

1,11,121

Greatest Common Factor

We found the factors 153,561,121 . The biggest common factor number is the GCF number.
So the greatest common factor 153,561,121 is 1.

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

• GCF of 965, 998, 221
• GCF of 690, 874, 629
• GCF of 669, 104, 683
• GCF of 193, 980, 875
• GCF of 637, 708, 843

1. What is the GCF of 153, 561, 121?

Answer: GCF of 153, 561, 121 is 1.

2. How to Find the GCF of 153, 561, 121

Answer: Greatest Common Factor(GCF) of 153, 561, 121 = 1

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

Step 2: Then multiply all the prime factors GCF(153, 561, 121) = 1.