CTET 2 Math and Science 28 Dec 2021 Paper

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Question : 35 of 150
 
Marks: +1, -0
Which of the following is not true about the natural numbers?
(a) 1 is a factor of every number.
(b) Every factor of a number is an exact divisor of that number.
(c) Number of factors of a given number is finite
(d) 1 is the smallest prime number
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