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Q: What two numbers have a gcf of 7 and LCM of 8?

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We know the gcf x LCM= AB where A and B are the two numbers. So the product of the two number we seek is 196 7 and 28 have a product of 196 and the gcf of 7 and 28 is 7. The LCM of 28 and 7 is 28. So the two numbers are 7 and 28. ( I started out by dividing 196 by 7 to get the 28)

The numbers are 7 and 35.

the two smallest numbers are 49 and 14

14 and 35

How about: 7 and 70

7 and 35

It is not possible to give a sensible answer to this question. The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question: 35! The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question: 7! 7 and 35 have a GCF of 7 and an LCM of 35.

Yes. For two prime numbers, the LCM is their product: one times the other. Multiply the two. (e.g. LCM of 5 and 7 is 35) By formula, the LCM for x and y is LCM = x * y / GCF and for primes, the GCF (greatest common factor) is 1.

You need at least two numbers to find both of those. If that's 5 and 7, the GCF is 1, the LCM is 35.

The GCF is 7. The LCM is 14.

The LCM of 7 and 9 is 63.

Of 7, 77 and 770:gcf is 7;lcm is 770.

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