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What is co. Primes?

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What is co. Primes?

    • Posted by S N Mahato 6 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Yogita Ingle 6 years, 10 months ago

    Co-prime number is a set of numbers or integers which have only 1 as their common factor. That is their highest common factor (HCF) will be 1. It is also known as relatively prime or mutually prime numbers.

    Consider a set of two numbers, if they have no positive integer that can divide both, other than 1, the pair of numbers is co-prime.

    Ex 1:  21 and 22

    21 and 22:

    • The factors of 21 are 1, 3, 7 and 21.
    • The factors of 22 are 1, 2, 11 and 22.

    Here 21 and 22 have only one common factor that is 1.Hence their HCF is 1 and are co-prime.

    1Thank You

    Gautam Chhipa 6 years, 10 months ago

    No which have there common hcf .

    1Thank You

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