Question 199502


First, list the prime factorization of each number. If you need help with prime factorization, check out this <a href="http://www.algebra.com/algebra/homework/divisibility/factor-any-number.solver">solver</a>.



18: 2*3*3



27: 3*3*3



45: 3*3*5



Now highlight the unique factors. Remember, highlight the factors that occur most frequently



18: <font color="red">2</font>*3*3



27: <font color="red">3*3*3</font>



45: 3*3*<font color="red">5</font>



Now multiply all of the highlighted factors


2*3*3*3*5=270


So the LCM of 18, 27, and 45 is 270