A LITTLE SOMETHING WORTH KNOWING
A small discovery. Yours to pass on.
Math & LogicOne small ahaProduct17 × 5
Think it. Then flip it.✳ ahamoraTap to reveal ↻Back to the cue ↶
Math & LogicOne small aha
Your new aha85
✳ ahamoraReference ↗17 groups of 5 make 85. Reversing the factors, 5 × 17, gives the same product. Source: Multiplication table ↗