Greatest Common Factor of 19, 21, 429

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

• Greatest Common Factor of 19, 21, 429 by common division method
• Greatest Common Factor of 19, 21, 429 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 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 21

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

1,3,7,21

Factors of 429

List of positive integer factors of 429 that divides 429 without a remainder.

1,3,11,13,33,39,143,429

Greatest Common Factor

We found the factors 19,21,429 . The biggest common factor number is the GCF number.
So the greatest common factor 19,21,429 is 1.

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

• GCF of 78, 13, 661
• GCF of 41, 99, 124
• GCF of 72, 91, 929
• GCF of 33, 71, 208
• GCF of 16, 15, 756

1. What is the GCF of 19, 21, 429?

Answer: GCF of 19, 21, 429 is 1.

2. How to Find the GCF of 19, 21, 429

Answer: Greatest Common Factor(GCF) of 19, 21, 429 = 1

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

Step 2: Then multiply all the prime factors GCF(19, 21, 429) = 1.