hcf of 9,12,18,21 give me anser
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3
Step-by-step explanation:
The factors of 9 are: 1, 3, 9
The factors of 12 are: 1, 2, 3, 4, 6, 12
The factors of 18 are: 1, 2, 3, 6, 9, 18
The factors of 21 are: 1, 3, 7, 21
Then the HCF is 3.
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