Maths Facts
- The only prime numbers that end with a “2” or “5” are two and five.
- Zero (0) Is the Only Number That Can’t Be Represented In Roman Numerals.
- The Only One Even Prime Number is 2. It is also the smallest and first prime number.
- Zero (0) is an Even Number.
- There Is Only One Number Spelled with the Same Number of Letters as Itself – The Number is 4.
- Number One (1) Is Not a Prime Number.
- We See Odd Numbers as Male and even Numbers as Female.
- Number (7) is considered to be a Lucky Number whereas Number (13) is considered to be an
Unlucky Number. The Most Popular “Favorite Number” is “7” whereas the Most Popular Two-
The digit Number is “13” - 111,111,111 × 111,111,111 = 12,345,678,987,654,321
- What comes after a million, billion and trillion? A quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion and undecillion.
- 1 = One
10 = Ten
100 = One hundred
1000 = One thousand
86400 = The number of seconds in a day
1000000 = One million
31556926 = The number of seconds in a year
1000000000 = One billion
7000000000 = The estimated human population on Earth (2011)
1000000000000 = One trillion
1000000000000000 = One quadrillion
1000000000000000000 = One quintillion
1000000000000000000000 = One sextillion
1000000000000000000000000 = One septillion
1000000000000000000000000000 = One octillion
1000000000000000000000000000000 = One nonillion
1000000000000000000000000000000000 = One decillion
1000000000000000000000000000000000000 = One undecillion
1000000000000000000000000000000000000000 = One duodecillion
1000000000000000000000000000000000000000000 = One tredecillion
1000000000000000000000000000000000000000000000 = One quattuordecillion
1000000000000000000000000000000000000000000000000 = One quindecillion
1000000000000000000000000000000000000000000000000000 = One sexdecillion
1000000000000000000000000000000000000000000000000000000 = One septendecillion
1000000000000000000000000000000000000000000000000000000000 = One octodecillion
1000000000000000000000000000000000000000000000000000000000000 = One novemdecillion
1000000000000000000000000000000000000000000000000000000000000000 = One vigintillion
1000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000 = One googol (the number 1 followed by 100 zeros)
1000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000 = One centillion (the number 1 followed by 303 zeros)
- “FORTY” is the only number that is spelt with letters arranged in alphabetical order.“ONE” is the only number that is spelt with letters arranged in descending order.
- From 0 to 1000, the only number that has the letter “A” in it is “ONE THOUSAND.”
- Every odd number has an “E” in it.
- Have you ever noticed that the opposite sides of a die always add up to seven (7).
- Square Rhombus Hexagon
Circle Pentagon Trapezium
Rectangle Oval
Right Angle Triangle Star
Octagon Crescent
SQUARE: A quadrilateral with 4 equal straight sides and 4 equal right angles.
CIRCLE: A circle is a round-shaped figure that has no corners or edges. All the points on the surface of the circle are equidistant from a fixed point, called the centre point.
RECTANGLE: A quadrilateral has 4 straight sides with opposite sides equal and 4 equal right angles.
TRIANGLE: A triangle is a polygon with 3 sides, 3 angles and 3 vertices. The sum of all the three angles of a triangle is equal to 180°.
OCTAGON: An octagon is a polygon that has 8 sides and 8 angles. All its interior angles sum up to 180°
RHOMBUS: A rhombus is a quadrilateral whose opposite sides are parallel and equal. The opposite angles of a rhombus are also equal and the diagonals bisect each other at right angles.
PENTAGON: A pentagon is a polygon with 5 sides and 5 angles.
OVAL: An oval is an egg-shaped geometrical figure. It has no vertices, corners, or any straight sides like a square, rectangle, or triangle.
STAR: A star shape is a polygon that has a finite number of sides which are connected end to end with each other.
CRESCENT: A crescent is a moon-shaped geometrical figure. It is a curved shape figure that is wider in the middle but tapers at the ends.
HEXAGON: A hexagon is a 6-sided polygon with 6 vertices and 6 angles.
TRAPEZIUM: A quadrilateral with one pair of sides parallel.