Question

What are co-primes?​

Answer 1

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For example, 2 and 3 are two prime numbers. Factors of 2 are 1, 2 and factors of 3 are 1, 3. The only common factor is 1 and hence is co-prime. Any two successive numbers/ integers are always co-prime: Take any consecutive number such as 2, 3 or 3, 4 or 5, 6 and so on; they have 1 as their HCF.

Answer 2

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What are co-primes?

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Numbers which do not have any common factor other then one are called ${\blue{\bf\:{prime\: numbers}}}$

Example:-2, 3 5 ,7 ,11 ,13 ,17 , 19, etc..

Some properties of co-prime numbers:-

• 1 is co - prime with every Number.

• Every prime Number is co - prime to each other. As every prime number have only two factors one and itself, the only common factor of prime numbers will be 1

• The sum of any two numbers are always co - prime.

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