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# Can someone explain?

Why is $$123, 456, 789 \times 9 = 1, 111, 111, 111$$?

Is there any special reason?

Note by Ajala Singh
2 years, 5 months ago

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Note that the equation you typed is wrong. Instead, what we have is

$123, 345, 79 \times 9 = 111, 111, 111.$ Staff · 2 years, 5 months ago

no its not. · 2 years, 5 months ago

(After accounting for possible arithmetic errors) There is a pattern involved here, so there might be a "special reason".

I elaborated further in this note. Staff · 2 years, 5 months ago