LCM of 25and 20

2 answers

The factors of 20 are:

20, because 20 ∙ 1 = 20

40, because 20 ∙ 2 = 40

60, because 20 ∙ 3 = 60

80, because 20 ∙ 4 = 80

100, because 20 ∙ 5 = 100

120, because 20 ∙ 6 = 120

etc.

The factors of 25 are:

25, because 25 ∙ 1 = 25

50, because 25 ∙ 2 = 50

75, because 25 ∙ 3 = 75

100, because 25 ∙ 4 = 100

125, because 25 ∙ 5 = 125

etc.

Least Common Multiple = 100
20 = 2^2 * 5
25 = 5^2
the LCM has the highest powers of all the primes involved
2^2 * 5^2 = 100