What is the lowest common multiple of 40 and 48?

Answer 1

40(1) = 40

40(2) = 80

40(3) = 120

40(4) = 160

40(5) = 200

40(6) = 240

48(1) = 48

48(2) = 96

48(3) = 144

48(4) = 192

48(5) = 240

A Trick:

Take the GCF of the two.

40 = (2)(2)(2)(5)

48 = (2)(2)(2)(2)(3)

GCF = (2)(2)(2) = 8

Strike the GCF out

40 = (2)(2)(2)(5)

48 = (2)(2)(2)(2)(3)

Multiply one of the numbers by the remaining factors of the other number.

40(2)(3) = 240

48(5) = 240