Question

least common multiple of 18 and 72

Answer 1

Hello !


Here is your answer!


Least Common Multiple of 18 and 72 = 72



$18 = 2 \times 3 \times 3$


$72 = 2 \times 2 \times 2 \times 3 \times 3$


LCM =
$2 \times 2 \times 2 \times 3 \times 3 = 72$


Hope it helps

Answer 2

1. Find the prime factorization of 18

18 = 2 × 3 × 3

2. Find the prime factorization of 72

72 = 2 × 2 × 2 × 3 × 3

Multiply each factor the greater number of times it occurs in steps 1) or 2) above to find the LCM:

LCM = 2 × 2 × 2 × 3 × 3

LCM=2³ × 3²

LCM = 72