article_snippet.sent: How much is one quadrillion?
article_snippet.sent: A quadrillion, is a thousand times one trillion, (a million times a million) in the American system.
article_snippet.sent: So a quadrillion is ten to the power of 15 or 1,000,000,000,000,000.
article_snippet.sent: In the American system, one quadrillion is ten to the power of 24 or 1,000,000,000,000,000,000,000,000.