It’s easy to tell if a given whole number is divisible by 2. Just check whether the last digit is even. There are also simple rules to determine whether a number is ...

The crisp new dollar bill that I have just taken from my wallet bears the serial number 24598176. It’s easy to tell that the number is exactly divisible by 2 but not by 5. Is it divisible by 3? by 4?

Randomly scramble the digits 0, 1, 2, 3, 4, 5 and 6 to form a seven-digit number (or a six-digit number if the leading digit is 0). Rank the following events in order ...

A Nigerian boy, Chika Ofili, has been recognised by the Westminster Under School, London, UK for propounding a new mathematical formula in solving number divisibility especially of 7. In a test ...

Add articles to your saved list and come back to them any time. RECENTLY, we left you with the number 4187 to factorise. That was mean: factorising is very hard work. And it is good that it is so hard ...

The Mathematics Teacher (MT), an official journal of the National Council of Teachers of Mathematics, is devoted to improving mathematics instruction from grade 8-14 and supporting teacher education ...