It is: 1
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HCF(8, 6) = 2.
The Highest Common Factor (HCF) of 8 and 24 is 8. To find the HCF, you need to determine the largest number that divides both 8 and 24 without leaving a remainder. In this case, 8 is the largest number that divides both 8 and 24 evenly, making it the HCF.
factors of 8: 1, 2, 4, 8 factors of 18: 1, 2, 3, 6, 9, 18 HCF: 2
49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
8