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You can multiply the number 18 by different numbers that are relatively prime, for example by different prime numbers.

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18, 36, 54

Q: Find 3 numbers whose GCF is 18?

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18 and 9 * * * * * Not so. LCM(9, 18) = 18, not 54. The correct answer is 18, 27.

A set of numbers can only have one GCF. 6, 12 and 18 have a GCF of 6. 16, 32 and 48 have a GCF of 16. 25, 50 and 75 have a GCF of 25. The GCF of 6, 16 and 25 is 1.

The numbers are 18 and 20.

The GCF of the given numbers is 18

31 and 18

Related questions

18, 36 and 54

18, 36, 54

You need at least two numbers to find a GCF. The GCF of 18 and 24 is 6.

18, 1800, 18000

18 and 81

They could be 12 and 18

You need at least two numbers to find a GCF.

18 36 and the last one 54

You need at least two numbers to find a GCF.

126 and 90 (trial and error gets you the answer)

18 and 9 * * * * * Not so. LCM(9, 18) = 18, not 54. The correct answer is 18, 27.