# The 10958 Problem – One Million Views

YouTube Videos by Numberphile on 10958 now has 1 milion views.

The 10958 Problem
A 10958 Solution

## One thought on “The 10958 Problem – One Million Views”

1. Jordan says:

Hi Inder,
I think Matt Parker played a little loose with the order of operations. In day-to-day math, we concatenate digits to form numbers naturally and always as a first step. This is such a natural step that we don’t even include a symbol for the concatenation operator and we all mutually agree that concatenation is the first step.
For example, 12×34 = 408 because we assume the concatenation operator falls between 1 & 2 as well as between 3&4 and is performed before the multiplication operator. We never question if the order of operations should be 2×3, then concatenate 1 & (2×3) & 4; 12×34 does not equal 164.

The acronym may be different globally, but we all mutually agree that BEDMAS / PEMDAS / BODMAS / BIDMAS is the proper order of operations. If we must explicitly add Concatenation as an operation, then surely we should have it as CBEDMAS.