Question

the common prime factor of 6 and 21 is dash
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Answer 1

Answer:

3

Step-by-step explanation:

co prime no.of 6 n 21

6=1×2×3

21=1×3×7

so co.prime no.will be 3×1=3

hope it helps you

Answer 2

Answer:

2,3, are prime factors of 6

3,7 are prime factors of 21

3 is the common factor of 21 and 6

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