Question

what are co-prime number please solve this question​

Answer 1

Two numbers which have only 1 as a common factor are said to be co-prime.

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$\bf \large \hookrightarrow \: \: 4 \: \: and \: \: 7$

$\bf \large \hookrightarrow \: \: 2 \: \: and \: \: 3$

$\bf \large \hookrightarrow \: \: etc.$

Answer 2

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QUESTION :- What are co-prime numbers? Give some examples.

ANSWER :-

☞ Two numbers or integers are co-prime if their common factor is only 1.

☞ There should be a minimum of two numbers to form a set of coprime numbers.

☞ Such numbers have only 1 as their highest common factor.

➩EXAMPLES

☞ When a co - prime number

→ 5 and 9

5 factors = 1 and 5

9 factors = 1, 3 and 9

Both have only 1 as a greatest common factor. Hence Both are co-prime numbers.

→ 4 and 7

4 factors = 1, 2 and 4

7 factors = 1 and 7

Both have only 1 as a greatest common factor. Hence Both are co-prime numbers.

☞ When not a co - prime number

→ 2 and 8

2 factors = 1 and 2

8 factors = 1, 2, 4 and 8

Both have 1 and 2 as greatest common factor. Hence Both are not co-prime numbers.