Question

find the LCM of 120 and 560

Answer 1

Steps to find LCM

Find the prime factorization of 120

120 = 2 × 2 × 2 × 3 × 5

Find the prime factorization of 560

560 = 2 × 2 × 2 × 2 × 5 × 7

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

LCM = 2 × 2 × 2 × 2 × 3 × 5 × 7

LCM = 1680

Answer 2

Answer:

1680

Step-by-step explanation:

120=2 × 2 × 2 × 3 × 5

560=2 × 2 × 2 × 2 × 5 × 7

=2 × 2 × 2 × 2 × 3 × 5 × 7=1680

∴l.c.m of 120and 560=1680.