# Question #e3a1b

Oct 4, 2017

56

#### Explanation:

It just means find the first number that appears in both the 7 and the 8 times tables.

Oct 7, 2017

$\lcm \left(7 , 8\right) = 56$

#### Explanation:

another use the formula

if $a , b \text{ }$are two numbers

$a b = h c f \left(a , b\right) \times \lcm \left(a , b\right)$

$7 \times 8 = h c f \left(7 , 8\right) \times \lcm \left(a , b\right)$

$56 = 1 \times \lcm \left(a , b\right)$

$\therefore \lcm \left(7 , 8\right) = 56$

Dec 3, 2017

$7 \times 8 = 56$

#### Explanation:

7 and 8 are consecutive numbers so their lcm is their product.