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Q: Which pair of composite numbers has GCF of 1?

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The GCF of all the composite numbers under 100 is 1. For e.g 4 & 9 are composite numbers & their GCF is 1, so if we take other composite numbers along with 4 & 9 the GCF will be 1.

4 and 9 have a GCF of 1

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

Any pair of prime numbers as for example 19 and 23

Yes.

3 and 7?

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.

5 and 7

25 and 36

4 and 9 hope it helps!! : )

No.

Yes, because the GCF of 1 and any other number is 1.

Any two composite numbers who do not share the same prime factors.15 = 5x322 = 11x2So 15 and 22 have a GCF of 1

If the GCF of two composite numbers is 1, they are co-prime or relatively prime.

25, 49 and 121

They are all composite numbers whose GCF is 1

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 GCF is a single number. In this case, the GCF is 1.

No. Two composite numbers, like 4 and 9, can have a GCF of 1. They are said to be relatively prime or co-prime.

Any consecutive composite integers, like 34 and 35.

All numbers (except 0 and 1) are either prime or composite. All composite numbers can be expressed as the product of prime factors. So the GCF will either be a single prime number or a combination of prime numbers. Of course, if there are no common prime numbers, the GCF is 1.

4 and 9

1, 2, 3, 4, 6 and 12

Yes. 4 and 8 have a GCF of 4. 104 and 108 have a GCF of 4. Any set of prime numbers has a GCF of 1, no matter how large or small they are.

25 and 32