Answer :
The question is asking for the highest common factor (HCF)
1220 = [tex] 2^{2} [/tex] x 5 x 61
549 = [tex] 3^{2} [/tex] x 61
HCF = 61
Ans: 61
1220 = [tex] 2^{2} [/tex] x 5 x 61
549 = [tex] 3^{2} [/tex] x 61
HCF = 61
Ans: 61