2x2x2x3x3x5 = 360
The prime factorization of 360 is 2x2x2x3x3x5, or 23x32x5 in exponential form.
As a product of its prime factors: 2*2*2*3*3*5 = 360
Prime factor each number. 18=2x3x3 45=3x3x5 72=2x2x2x3x3 Use each prime factor the number of times it was used the MOST in any one of the numbers. 2x2x2x3x3x5=360 The least common denominator of 18, 45, and 72 is 360.