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piyush5764:
18=2,3,3. 21=3,7
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Answer:
answer is 3
Step-by-step explanation:
your ans is 3
Answered by
1
first find factors of 18,21,33
18=2×3×3
21=7×3
33=3×11
common no. between 18,21and 33 is
3 .
so hcf is 3
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