Find the HCF of he numbers in each of the following , using the prime factorization method :
170, 238

Find the HCF of he numbers in each of the following , using the prime factorization method : 84 , 98

Find the HCF of he numbers in each of the following , using the prime factorization method : 504, 980

Find the HCF of he numbers in each of the following , using the prime factorization method : 1197, 5320, 4389

Find the HCF of he numbers in each of the following , using the prime factorization method : 272, 425

Find the HCF of he numbers in each of the following , using the prime factorization method : 84, 120, 138

Find the HCF of he numbers in each of the following , using the prime factorization method : 72, 108, 180

Find the HCF of he numbers in each of the following , using the prime factorization method : 106, 159, 371

Find the HCF of the numbers in each of the following , using the prime factorization method : 144, 252, 630

Find the HCF of the numbers in each of the following, using the division method : 2241, 2324

Find the HCF of the numbers in each of the following, using the division method : 1045, 1520