Board Thread:Off Topic/@comment-31320657-20170216194059/@comment-26446727-20170311192303

175 is 1+7+5=13 and is 1*7*5=35 so 13 = 35.

13 = 1+3 = 4 and 1*3 = 3 so 4 = 3.

35 is 3+5=8 and 3*5=15 so 8 = 15.

So 8 = 4 and 15 = 3.

So 4 = 2*4 and 3 = 5*3.

So 2 = 5 = 1.