Question

find the composite number, which is coprime of 80, which is coprime of 80

Answer 1

Answer:

Step-by-step explanation:

Since 80 = 2 x 2 x 2 x 2 x 5, it is easy to construct the co-prime 3, which shares no common factors with 80. Likewise 21 is co-prime to 80; again they have no common factors > 1.