Find the H.C.F of the following numbers: (a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63 (e) 36, 84 (f) 34, 102 (g) 70, 105, 175 (h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75

Find the H.C.F of the following numbers: (a) 18, 48 (b) 30, 42 (c) 18,

1.	Find the H.C.F of the following numbers: (a) 18, 48 (b) 30, 42 (c) 18, 60 (d) 27, 63 (e) 36, 84 (f) 34, 102 (g) 70, 105, 175 (h) 91, 112, 49 (i) 18, 54, 81 (j) 12, 45, 75
Answer» Answer : HCF is the greatest number that exactly divides two or more given numbers. First, we find theprime factorizationof each number and find the common prime factors of those numbers. Then, we find the HCF of those numbers by finding the product of the prime factors that are common to each of the given numbers.