New: mathfacts

veryscience (56)in mathematics • 8 years ago
Math Fact of the Day - How to easily tell if a large number is evenly divisible by three.
2,389,202,392,398,204 is a very large number, but you can easily tell that this number is evenly divisible by three. You can do this by simply adding the sum of it's digits then checking if the…
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Math Fact of the Day - How to easily tell if a large number is evenly divisible by three.