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2 January, 08:45

Which number is composite?

a. 51

b. 17

c. 29

d. 41

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Answers (1)
  1. 2 January, 09:12
    0
    51

    Step-by-step explanation:

    A composite number is one in which the number is made up of 2 or more primes. The primes can be the same.

    A prime number is divisible only by itself and 1. So here are some composites

    Composites

    20: 2 * 2 * 5 [no even number is a prime number except 2].

    45:3 * 3 * 5

    9: 3 * 3 The primes can be the same.

    51: 3 * 17

    Primes

    2 3 5 7 11 13 17 19 ... and more to follow.

    41 can only be divided by itself and 1. It is a prime.

    29 can only be divided by itself and 1. It is a prime.
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