49 (number) facts for kids
Forty-nine is a special number that comes right after forty-eight and just before fifty. It's an odd number, which means you can't divide it evenly by two. Forty-nine is also known for being a square number.
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What is a Square Number?
A square number is what you get when you multiply a whole number by itself. For example, if you multiply 7 by 7, you get 49. This is why 49 is called "7 squared" or "the 7th square number." Imagine a square shape with 7 rows and 7 columns of dots; you would have 49 dots in total!
Other Square Numbers
Before 49, there are other square numbers you might know. These include:
- 1 (which is 1 multiplied by 1)
- 4 (which is 2 multiplied by 2)
- 9 (which is 3 multiplied by 3)
- 16 (which is 4 multiplied by 4)
- 25 (which is 5 multiplied by 5)
- 36 (which is 6 multiplied by 6)
Divisible by Seven
Forty-nine is also special because it can be divided perfectly by 7. When you divide 49 by 7, the answer is exactly 7, with no remainder. This makes 7 a "factor" of 49.
Forty-nine in Everyday Life
The number 49 appears in many places. For example, in some sports, like American football, players might wear the number 49 on their jerseys. It's also a common number in mathematics problems and puzzles.
Science and Nature
In chemistry, the element Indium has an atomic number of 49. This means an atom of Indium has 49 protons in its nucleus.
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