Question

A group of three digits separated by commas in a multidigit number is a

Answer 1

Answer:

They divide the number into thousands, and power of thousands, so that millions, billions, and so on can be identified more easily.

Whereas it is not easy to tell the magnitude of 17468256795123654, the number 17,468,256,795,123,654 is simpler. It is approx 17.5 quadrillion (5 triplets after its integer part).