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Q: Give a PAIR of numbers whose GCF is 1?

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3 and 6

5 and 75

The pair of numbers whose GCF is 1 and LCM is 36 is 9 and 4. The numbers should be greater than their GCF and less than their LCM.

10 and 120

which pair of numbers from 1 to 30 has the LCM OF 120

To find a pair of numbers with a given GCF, take the GCF number and double it. The pair of numbers is the GCF, and two times the GCF. For instance, two numbers with a GCF of 3 are 3 and 6.

A number pair whose GCF is the same as one of the numbers is i , i x j where i and j are integers greater than zero. If i=3 and j=5 then the number pair will be 3,15. The GCF is 3. If i=7 and j=11 the number pair will be 7,77 and the GCF 7. The number of possible solutions is infinite.

12 and 252 is a pair of numbers that fit those criteria.

72 and 96. Select any two co-prime numbers - for example 3 and 4. Then 24 multiplied by these will give a pair of numbers whose GCF is 24.

The GCF is a single number so there cannot be any pair of numbers in the answer.

The pair of numbers whose GCF is 1 and LCM is 36 is 9 and 4. The numbers should be greater than their GCF and less than their LCM.

2 and 24 satisfy that request. So do 6 and 8.

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