Question

http://prntscr.com/9f3qib

help me

Answer 1

@pooja195

Answer 2

@ShadowLegendX

Answer 3

@nincompoop

Answer 4

Okay, we're looking at prime factorization. The first problem equals 60 and the second equals 84. so we have to find the multiples of 84 and 60

84: 84, 168, 252, 336, 420
60: 60, 120, 180, 240, 300, 360, 420, 480

Both of their least common multiple equal 420
So you will divide 420 by 2, every time by using the factor tree

(sorry if my drawing isn't clear, it's hard doing it on a computer)



once you do the factor tree, you end up with getting 2(2) * 3(2) * 5 * 7

(*) <- this is the exponent, to make it easier so you won't be confused