# 24

= 2 × 2 × 2 × 3

= 2 × 12
= 3 × 8
= 4 × 6

= 1 × 2 × 3 × 4
Factorial 4 or 4!

= 3 + 5 + 7 + 9

If you had a box of 24 gerbils you could share them out equally among either 1, 2, 3, 4, 6, 8, 12 or 24 people. These numbers are the factors of 24. It is the smallest number to have eight different factors.

There are 24 hours in a day.

24 furlongs make one league. Furlongs and leagues are old imperial units of distance. A league is equivalent to 4.83 kilometres.

In old British money a florin was worth 24 pence. Its modern equivalent is the ten pence piece.

24 is the number of ways in which the letters of the word MEAT may be arranged. Only six arrangements produce words, though.

Advent calendars have doors numbered from 1 to 24. The last door is to be opened on December 24, Christmas Eve.

Twenty-Four Hours from Tulsa was a hit single for Gene Pitney in 1964. It reached No 5 in the UK charts and No 17 in the USA.

Many traditional songs and rhymes include the phrase 'four and twenty' –

Four and twenty weavers went out to kill a snail,
The bravest man among them trod upon his tail;
The snail turned round with horns like a cow –
'God bless us', said the weavers, 'We're dead men now.'

Nine Men's Morris – the board has 24 holes for pegs.

24 carat gold means pure gold. 12 carat gold would be 50 per cent pure, 18 carat is 75 per cent pure, and if you are offered 25 carat gold, you are being done.

Today if you buy something made of gold it will have a mark showing its purity –
375 means 9 carat gold
583 means 14 carat gold
750 means 18 carat gold
916 means 22 carat gold.

Can you figure out why these 3 digit numbers were chosen?

24 marbles in a 4 × 6 pattern.