35 (number) facts for kids

Thirty-five is a special number that comes right after thirty-four and just before thirty-six. It is an odd number, which means you cannot divide it perfectly by 2. When you divide 35 by 2, you will always have a remainder.

What is the Number 35?

The number 35 is a composite number. This means it has more than two divisors. A divisor is a number that divides another number exactly, with no remainder. The numbers that divide 35 perfectly are 1, 5, 7, and 35 itself.

Math Facts About 35

Thirty-five has some interesting properties in mathematics:

• Prime Factors: The prime factors of 35 are 5 and 7. This means you can multiply 5 by 7 to get 35.
• Tetrahedral Number: 35 is a tetrahedral number. Imagine stacking balls to form a pyramid with a triangular base. If you have 35 balls, you can make such a pyramid! The image below shows this.
• Pentagonal Number: It is also a pentagonal number, which relates to arranging dots in the shape of a pentagon.
• Centered Cube Number: 35 is a centered cube number. This means you can arrange 35 points to form a cube with one point in the very center.
• Sum of Triangular Numbers: If you add up the first five triangular numbers (1, 3, 6, 10, and 15), you get 35.

Where Do We See 35?

The number 35 appears in many places around us:

• Politics: In the United States, a person must be at least 35 years old to become the President of the United States.
• Chemistry: In the periodic table of elements, the element Bromine has an atomic number of 35.
• Sports: In basketball, some famous players have worn the number 35 as their jersey number.
• Photography: Many common cameras use 35mm film, which refers to the width of the film.
• Time: There are 35 days in five weeks.

Images for kids

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  35 is a tetrahedral number

See also

In Spanish: Treinta y cinco para niños