Write in set buliders form C={1,2,3,6,7,14,21,42}

A=(x:x is a natural number, x is a factor of [42])

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Step-by-step explanation:

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A Set is a collection of things (usually numbers). ... But we can also "build" a set by describing what is in it. Here is a simple example of set-builder notation: It says "the set of all x's, such that x is greater than 0".

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answer

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in question there have this solution ok

B

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Greatest common factor is 21

Step-by-step explanation:

Factors of 42 : 1,2,3,6,7,14,21,42

Factors of 63:1,3,7,9,21,63

So Greatest Common Factor is 21

Yi did one mistake when he was giving the factors of 63 he missed out two values which are 3 and 21 so due to this he missed the greatest common factor which was 21.

idk u didnt include the answer like tf

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if you already know answer then why are you asking us..

Number of Elements In given Set are factors of 42.

{x:x is factor of 42}

In Set Builder Form We describe the Set with a definite Property.