Question

Composite number to 80 which is co prime to 80

Answer 1

80, 63 ,135,88 - Quora. So in all 5 prime no.s been used i.e. 2,3,5,7,11. Therefore a composite co-prime number would be the product of the next two prime no.s which are 13 & 17 i.e. 221. If you have a paired series of numbers as follows: 20

Answer 2

come prime no. of 80 is 21

and composite no to 80 are...

2, 4, 5, 8, 10, 16, 20, 40

here is your answer..

can you please mark it brainliest