Math, asked by vandnakala560, 6 months ago

Q.4) Which of the following
pairs are not co-prime? *
7,15
12,21
18,23
12,49

Answers

Answered by sharmaruchi0183

0

Answer:

7,15is correct answer

Answered by 1976gargib

2

Answer:

(B)12, 21

Step-by-step explanation:

Co-prime nos. are the nos. whose HCF is 1. But, the HCF of 12 and 21 is 3.

12=2x2x3

21=3x7

So, 12 and 21 are not co-prime nos.

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