Question

which of the following pairs of numbers are co prime
a. 30,15
b. 17,68
c. 16,81
d. 15,10​

Answer 1

Answer:

a.30,15 is the answer....

Answer 2

Answer:

Coprime numbers are numbers that have only 1 as their HCF.

(a) 18 and 35

18 and 35 have no common factors, Therefore, 18 and 35 are coprime numbers.

(b) 15 and 37

As they have no common factors, 15 and 37 are co-prime numbers.

(c) 30 and 415

As they have a common factor 5, hence, 30 and 415 are not co-prime.

(d) 17 and 168

As they have no common factors, 17 and 168 are coprime numbers.

(e) 216 and 215

As they have no common factors, 216 and 215 are coprime numbers.

(f) 81 and 16

As they have no common factors, they are co-prime numbers.

Step-by-step explanation:

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