Maharashtra State BoardSSC (English Medium) 7th Standard
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Which of the Following Are Pairs of Co-primes? - Mathematics

Short Note

Which of the following are pairs of co-primes?

(i) 8, 14
(ii) 4, 5
(iii) 17, 19
(iv) 27, 15

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Solution

Two numbers that have only 1 as a common factor are said to be co-prime or relatively prime or mutually prime numbers.
We can write 17 as 17 × 1 and 19 as 17 × 1.
Hence, 17 and 19 is a pair of co-prime numbers.

Concept: Concept of Twin Prime Numbers
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APPEARS IN

Balbharati Mathematics 7th Standard Maharashtra State Board
Chapter 3 HCF and LCM
Practice Set 10 | Q 2 | Page 15
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