Question

Find the lcm of 45,75using prime factorisation methods salution

Answer 1

Alternatively, the lcm of 45 and 75 can be found using the prime factorization of 45 and 75:
The prime factorization of 45 is: 3 x 3 x 5.
The prime factorization of 75 is: 3 x 5 x 5.
Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(45,45) = 225.

Answer 2

Answer:

lcm of 45,75

5*5*3*3=225