# 25

## Monday Open Thread; December 25 is Christmas

December 25 is the 359th day of the year, there are 6 days left
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Today's number is 25

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25 is 5 squared, and it has no other divisors

## Monday Open Thread; September 25 was the Battle of Stamford Bridge

September 25th is the 268th day of the year. There are 97 days left.

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Today's number is 25

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25 is 5 squared, and it has no other divisors. It is odd, like the square of every prime other than 2.

## Open Thread for July 25, 2016, Puerto Rico Constitution Day

July 25 is the 206th day of the year. There are 159 days left.

So we're looking at 25 this Monday

25 is 5 squared, and it has no other divisors

## Open Thread for April 25, 2016; Happy Title 25

So we're looking at 25 this Monday
25 is 5 squared, and it has no other divisors. It is odd, like the square of every prime other than 2.

25 is the smallest square that is the sum of two smaller squares (9 & 16). Carpenters and others make fact of this property to draw large right angles, since this is a pythagorean triangle, with sides of 3, 4 and 5

## Open Thread: Monday, January 25, 2016

So we're looking at 25 this Monday

25 is 5 squared, and it has no other divisors