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The Romans had no symbol for zero.

The Romans had no symbol for zero.

Roman numerals like I, V, X and C have no zero at all. The idea of zero as a number reached Europe much later, from Indian and Arabic mathematics.

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A 'googol' is a 1 followed by one hundred zeros. A 'googol' is a 1 followed by one hundred zeros. A “googol” is the number 1 followed by 100 zeros. A “googol” is the number 1 followed by 100 zeros. Numbers help us tell how many things there are. Numbers help us tell how many things there are. Zero is the only number that can't be written with Roman numerals. Zero is the only number that can't be written with Roman numerals. Counting numbers go on forever — you can always add one more. Counting numbers go on forever — you can always add one more.