Question

find the lcm of 120,180,225​

Answer 1

Answer:

900

Step-by-step explanation:

225 = 32 × 52;

225 is not a prime, is a composite number;

180 = 22 × 32 × 5;

180 is not a prime, is a composite number;

* Positive integers that are only dividing by themselves and 1 are called prime numbers. A prime number has only two factors: 1 and itself.

* A composite number is a positive integer that has at least one factor (divisor) other than 1 and itself.

>> Integer numbers prime factorization

Calculate the least common multiple, lcm:

Multiply all the prime factors, by the largest exponents (if any).

lcm (225; 180) = 22 × 32 × 52;

lcm (225; 180) = 22 × 32 × 52 = 900

the numbers have common prime factors