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Q: Why do you have to learn about greatest common divisors?

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92

The GCF is 1.

The greatest common factor(or the greatest common divisor): For two nonzero integers a and b, any integer that is a divisor of both a and b is a common divisor. The greatest of all the common divisors is the greatest common divisor denoted by gcd(a, b) or (a, b), which has the property of being divisible by every other common divisors of a and b.For example, the gcd(12, 8) is 4.the positive factors (or divisors) of 12 are 1, 2, 3, 4, 6, and 12.the positive factors (or divisors) of 8 are 1, 2, 4, and 8.1, 2, and 4 are all the common divisors of 12 and 8.Since 4 is the greatest of all the common divisors, it is the greatest common divisor (or the GCF) of 12 and 8, and 4 is also divisible by 1 and 2.

The GCF is 7.

The Greatest Common Divisor (GCD) for 5 7 is 1

Because factors and divisors are the same thing: numbers that divide into a product evenly.

The GCF is 1.

You need at least two numbers to find a GCF.

The common divisors are 1, 2, 3, 6.

Divisor is another word for factor. Common divisors are often called common factors, in fact the term GCD or greatest common divisor is the same as GCF which is greatest common factor.

You need at least two numbers to find a GCF.

A single number cannot have a greatest common divisor because "common" refers to divisors that two or more numbers have in common. You have only one number.

You need at least two numbers to find a GCF. If that's 18 and 9, the GCF is 9.

96/6=16 66/6=11 16 and 11 have no common divisors so 6 is the greatest commond divisor of 66 and 96.

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All numbers have divisors. Some numbers have some of the same divisors as other numbers. These are called common divisors. 3 is a divisor of 9. 3 is a divisor of 12. 3 is a common divisor of 9 and 12.

The GCF of 6 and 12 is 6.You can do this in two ways:1. List all the divisors of any number:Factors, or divisors of 6 are 1, 2, 3, and 6Factors, or divisors of 12 are1, 2, 3, 4, 6, and 12The GCF is 6.2. 12/6 = 2 remainder 0.Since 12/6 gives no remainder, 6 is the GCF. the greatest common factor of 6 and 12 is 6The GCF is 3.The greatest common factor of 6 and 12 is 6.

Trick question - 25/27 is already in simplest form. Divisors of 25: 1,5,25 Divisors of 27: 1,3,9,27 Since the greatest common divisor is 1, you can not simplify any further.

The only common divisor is 1.

You need to learn it, so you can learn Greatest Common Factor, which you need to reduce fractions.

1,2,3,4,6,12

19 is the largest positive integer that divides evenly into both 76 and 57 with no remainder.

Coprimes, or relative primes, are two or more numbers that share no common divisors. To determine whether numbers are relatively prime, find their greatest common denominaotr. If it's one, they're coprime.

60?

1, 2 and 4