Greatest Common Factor of 821, 157, 285, 742

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

• Greatest Common Factor of 821, 157, 285, 742 by common division method
• Greatest Common Factor of 821, 157, 285, 742 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 821

List of positive integer factors of 821 that divides 821 without a remainder.

1,821

Factors of 157

List of positive integer factors of 157 that divides 157 without a remainder.

1,157

Factors of 285

List of positive integer factors of 285 that divides 285 without a remainder.

1,3,5,15,19,57,95,285

Factors of 742

List of positive integer factors of 742 that divides 742 without a remainder.

1,2,7,14,53,106,371,742

Greatest Common Factor

We found the factors 821,157,285,742 . The biggest common factor number is the GCF number.
So the greatest common factor 821,157,285,742 is 1.

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

• GCF of 997, 190, 174, 163
• GCF of 415, 903, 344, 763
• GCF of 292, 571, 694, 788
• GCF of 395, 463, 882, 229
• GCF of 653, 524, 798, 563

1. What is the GCF of 821, 157, 285, 742?

Answer: GCF of 821, 157, 285, 742 is 1.

2. How to Find the GCF of 821, 157, 285, 742

Answer: Greatest Common Factor(GCF) of 821, 157, 285, 742 = 1

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

Step 2: Then multiply all the prime factors GCF(821, 157, 285, 742) = 1.