Gujarat BoardEnglish MediumSTD 6MATHSPlaying With Numbers2 Marks
Question
Find if the numbers $18$ and $35$ are co-primes or not.
✓
Answer
$1 \times 18=18 ; 2\times 9=18 ; 3 \times 6= 18$
Factors of $18$ are $1, 2, 3, 6, 9$ and $18.$
$1 \times 35=35 ; 5 \times7= 35$
Factors of $35$ are $1, 5, 7$ and $35.$
\therefore Common factor of $18$ and $35$ is $1.$
$\because 18$ and $35$ have only $1$ as the common factor.
$\therefore 18$ and $35$ are co-prime numbers.
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