document.write( "Question 75469: Which of the following is/true?
\n" ); document.write( "A.The prime factors of 20 are 4 and 5.
\n" ); document.write( "B.The HCF of 12 and 20 is 2.
\n" ); document.write( "C.The LCM of 2,10 and 14 is 70.
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A must be false as 4 is not a prime.
\n" ); document.write( "B must be false as 4 is a factor of both numbers and is greater than 2
\n" ); document.write( "C is true as the prime number factors of 2, 10 and 14 are 2, 5 and 7. 2*5*7=70
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