hcf(85, 153) = 17 85 = 5 x 17 153 = 3² x 17 hcf = 17
HCF of 17 and 68 is 17 ..( Lowest Prime factor ) LCM Of 102 and 476 is 7*2^2*3*17 which is 1428 .. ==> Sum of HCF and LCM are 1428+17= 1445 .
The GCF/HCF of 17 and 51 is 17.
51 = 1 x 3 x 17; 221 = 1 x 13 x 17. GCF is 1 x 17 = 17.
3.
1
17
51 = 3 x 17; 87 = 3 x 29. HCF is 3
The Highest Common Factor (HCF) of the two numbers is 3. 63/3 = 23 and 51/3 = 17.
The common factors are: 1, 3, 17, 51
HCF = 3... LCM = 18 !
The GCF is 3.