100 (number) facts for kids
The number 100 (also called one hundred) is a natural number. It comes right after 99 and before 101. It's the very first number that has three digits when you count up from zero.
Quick facts for kids
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|---|---|---|---|---|
| Cardinal | one hundred | |||
| Ordinal | 100th (one hundredth) |
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| Factorization | 22× 52 | |||
| Greek numeral | Ρ´ | |||
| Roman numeral | C | |||
| Binary | 11001002 | |||
| Ternary | 102013 | |||
| Senary | 2446 | |||
| Octal | 1448 | |||
| Duodecimal | 8412 | |||
| Hexadecimal | 6416 | |||
Contents
The Number 100
What is 100?
The number 100 is a special number. It's a natural number, which means it's one of the numbers we use for counting. It is also an abundant number. This means that if you add up all its divisors (numbers that divide into 100 evenly, not including 100 itself), the total is more than 100. For example, the divisors of 100 are 1, 2, 4, 5, 10, 20, 25, and 50. If you add them up (1+2+4+5+10+20+25+50), you get 117, which is more than 100.
In ancient Rome, the letter C was used as a Roman numeral for 100. This is why the word "century" (meaning 100 years) starts with 'C'.
Where Do We See 100?
The number 100 appears in many places in our daily lives and in different fields.
In Sports
In sports, 100 is a common distance. For example, in track and field, there is a very exciting 100-meter running competition. This is one of the fastest races in the world.
In Money
Many countries have money notes or coins that are worth 100 units. For example, the U.S. hundred-dollar bill is a well-known banknote. India also has a 100 rupee note.
In Technology
In computer science, the number 100 can mean different things depending on how it's written. For example, in binary code, which computers use, the number "100" actually stands for the number 4. This is because binary uses only 0s and 1s.
Images for kids
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Hundred rupee note in India
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The U.S. hundred-dollar bill, Series 2009
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A friendly robot
See also
In Spanish: Cien para niños
