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What are the lcm of

0 votes

450,720 and 1170?

asked Jun 17, 2014 in PRE-ALGEBRA by anonymous

1 Answer

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The numbers are 450, 720 and 1170

Write the prime factorization of each number

450 = 2 * 5 * 5 * 3 * 3 = 2 * 32 * 52

720 =  2 * 2 * 2 * 2 * 5 * 3 * 3 = 24 * 32 * 5

1170 =  2 * 5 * 3 * 3 * 13 = 2 * 32 * 5 * 13

Multiply highest power of  each factor in the either number.

Least common multiple =  24 * 32 * 52 * 13

             = 46800

Least common multiple of 450, 720 and 1170 is 46800.

 

answered Jun 17, 2014 by david Expert

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