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The tri- refers to three.
The prefices come from the European use where the prefices represented the powers of a million. This is known as the long scale.
billion = million^2 (bi- = 2)
trillion = million^3 (tri- = three)
quadrillion = million^4 (quadra- = four)
and so on.
This meant that a number with a prefix representing the number n had 6n zeros.
However, most non-European countries, as well as the UK, use the short scale. In this scale, there is no direct link between the prefix and the power. From a billion onwards, (prefix + 1) is the power of 1000. In this scale, a number with a prefix representing the number m had 3*(m+1) zeros.
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Words that begin with tri?
Some words that begin with tri [as a prefix] include: 1.trillion 2.triathlon 3.triceratops 4.trilogy 5.triangle 6.tripod 7.triad
What does 555 trillion mean?
555 trillion is a number. It does not really mean anything, unlike words, where there is a definition for every word in the dictionary.
What does tri-yearly mean?
Three times each year.
What are some Words that start with the prefix tri?
Triangle Tripod Triad Trilogy Triceratops Triathlon Triathlete Trillion Tricycle Triassic Trigram Trisect Triacid Triatomic Triannual
How many feet are there in a trillion inches?
Taking a trillion to mean 10^12, divide by (12 in/ft) to get 83,333,333,333.33 ft (about 83 billion)
