Consider a list of integers
$1, 3, 4, 7, 8, 11, 15, 78, 83, 91.$
Total number of integers which are not prime in them is

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Solution

Numbers which are not prime are $1, 4, 8, 15, 78, 91$

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Consider a list of integers 1,3,4,7,8,11,15,78,83,91. Total number of integers which are not prime in them is

Numbers which are not prime are 1,4,8,15,78,91

Consider a list of integers
$1, 3, 4, 7, 8, 11, 15, 78, 83, 91.$
Total number of integers which are not prime in them is

Numbers which are not prime are $1, 4, 8, 15, 78, 91$