document.write( "Question 508023: Could you please show me the steps to get Least Common Multiple for 28,40,56 \n" ); document.write( "
Algebra.Com's Answer #340839 by tinbar(133)![]() ![]() ![]() You can put this solution on YOUR website! First get their common divisor:\r \n" ); document.write( "\n" ); document.write( "To do that, prime factorize each one, that is re write the number as a product of primes: \n" ); document.write( " 28 = 2*2*7 \n" ); document.write( " 40 = 2*2*2*5 \n" ); document.write( " 56 = 2*2*2*7\r \n" ); document.write( "\n" ); document.write( "Next, from the lists of prime factorizations find the common numbers. In this case, we only have 2*2 which is common to all lists. So the greatest common divisor in this case is 2*2 which is 4.\r \n" ); document.write( "\n" ); document.write( "Now, to find the least common multiple, multiply the numbers in the given question and then divide it by it's greatest common divisor. In this case, (28*40*56)/4 = 15,680 \n" ); document.write( " |