Question

Find the lowest common multiple used 5,20 and 28

Answer 1

Answer:

140

Step-by-step explanation:

prime Factorisation of 5 is =5

prime Factorisation of 20 is=

$2 \times 2 \times 5$

Prime Factorisation of 28 is

$2 \times 2 \times 7$

so Lowest Common Factor of 5, 20, 28 is

$2 \times 2 \times 5 \times 7 = 140$