Class Test (2) - Prime Factorisation, Squares and Square Roots, Cubes and Cube Roots & Integers
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Ex 1-1 Prime factorisation and index notation
Ex 1-1 Prime factorisation and index notation Definition of a prime number: Prime numbers have only 2 factors. Prime numbers can only be divisible by 1 and itself. Amendment: Solution to question 8 should include clearer explanation like the following 2 examples. E.g 14 is a composite number as it has more than two factors. The factors are 1,2,7 & 14. E.g Sqrt 19 = 4.35..., 19 is not divisible by all prime factors less than 4.35.. ==> 19 has no other factors except 1 and 19. ==> 19 is a prime as it has only 2 factors.