Find the HCF of 55 and 210. Express it as a linear combination of 55 and 210, ie. HCF of 55 and 210 = 210a + 55b, for some a and b.
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Answer:
A=5, B= -19
Step-by-step explanation:
HCF of 210 and 55
255= 55×3+45 --------- 1
55=45×1+10 -------- 2
45=10×4+5 ---------- 3
10=5×2+0.
From prime factorization:
HCF of 210 and 55 =5
Putting value from equation 2 and 3
45-(55-45)*4 =5
45-55*4+45*4=5
(210-55*3)5-55*4=5
210*5-55*15-55*4 = 5
5 = 210*5*55*19 = 210A+55B
From the above equation we get
A=5
B= -19
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