Exercise 1A BASIC LEVEL 1. Determine whether each of the following is a prime 3. or a composite number. (a) 87( b) 67 (c) 73 (d) 91
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Given 3×12×101+4
We have to see it is prime or composite number
We know composite number has atleast three factors and every prime number has only how factors.
Now
3×12×101+4=3×3×4×101+4
=4[3×3×101+1]
=4×k×1= composite number
[It has more than two factors 4,K and 1]
Therefore,
3×12×101×+4 is a composite number
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Answer:
idk sry
Step-by-step explanation:
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