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Q: Find the two smallest numbers whose GCF is 7 and whose LCM is 98?

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18 and 81

You need at least two numbers to find a GCF.

10 and 120

A set of numbers whose GCF is one are called co-prime or relatively prime

The GCF of 6 and 10 is 2.

numbers which are co prime have a GCF as 1 For example *2,3 *37,47 *23,24

If the GCF of two numbers is 850, both numbers are multiples of 850. Multiples of 850 include 850, 1700, 2250 and so on. The smallest two numbers that have a GCF of 850 are 850 and 1700. But 1700 is divisible by 850. 1700 and 2250 are the next two smallest and are not divisible by each other.

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.

4 and 9 have a GCF of 1

Find the highest factor of the smallest of the numbers and divide it into the highest number, if it goes in exactly that's your answer?

No. The GCF can only be equal to or less than the smallest number in the set.

16,24

18, 36 and 54

the answer is 45 90 and 60

7, 14 and 21

20 and 100.GCF is 20, and LCM is 100.

12 and 66

5 and 75

12, 24 and 120

You don't; you need at least two numbers to find a GCF.

LCM/GCF = 54/9 = 6 So you require two factors of 6 such that their maximum is the smallest. Therefore, rather than 1 and 6, you select 2 and 3. The two numbers are GCF*2 and GCF*3, that is 18 and 27.

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.

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. A single number (the smallest) cannot have a GCF.

You need at least two numbers to find a GCF.

You need at least two numbers to find a GCF.