Which of the following is a pair of co-
primes?
a. (31.93)
b. (32,62)
c. (18,25)
d. (14, 35)
Answers
Answered by
4
Answer:
a. 31, 93 are the pair of co-prime
Answered by
1
Answer:
(18,25)
Step-by-step explanation:
Co - prime numbers are the numbers which have only one common divisor = 1 or their HCF = 1.
a.(31,93)
31=1×31
93=3×31 ∴HCF=31
b. 32 = 2 × 2 × 2 × 2 × 2
62 = 2 × 31∴ HCF(32,62) = 2.
c. (18,25)
18 = 2 × 3 × 3
25 =5 × 5∴ HCF(18,25) = 1.
d.14 = 2 × 7
35 = 5 × 7∴HCF(14,25) = 7.
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