It’s the advanced algebra of optical illusions. Puzzle lovers are blowing a gasket trying to decipher this numerical eye exam, which can reportedly only be solved by 0.1% of people. The vexing visual ...

In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...

Have you ever gone through a period of time where you saw the same number everywhere? Perhaps your morning coffee costs $3.33, and so does a gallon of gas when you fill up your car. Maybe then you log ...

A prime number is a number that is only divisible by one and itself, which is essentially saying that it has no divisor. That takes half of all possible numbers off the table right away (the evens), ...

How to specify single- and double-digit values using the Replace feature in Word Your email has been sent Any time a Microsoft Word’s Find & Replace task goes beyond literal values, you might need ...

There are many different types of numbers, some of which you may remember from school: natural, rational, irrational, imaginary, calculable and incalculable numbers. Today, however, we are going to ...

In 1886 the mathematician Leopold Kronecker famously said, “God Himself made the whole numbers — everything else is the work of men.” Indeed, mathematicians have introduced new sets of numbers besides ...