Argue In Your Head m³-m Is Divisible By 6 For Any Integer m

Brain Exercise

Photo by Jonathan Cosens Photography on Unsplash

Notice the following are all multiples of 6:

• 2³-2=6=6 times 1
• 3³-3=24=6 times 4
• 4³-4=60=6 times 10
• 5³-5=120=6 times 20
• 6³-6=210=6 times 35
• 7³-7=336=6 times 56