Tag Archives: Mathematics

Large Factor Tables And A Bizarre Application Of Mathematics To Warfare

Since Euclid prove that there is an infinite number of primes more than two millennia ago, a large number of mathematicians have been devising methods for finding large primes. Many have wasted obscene amounts of time in their search. Despite the development … Continue reading

Posted in History, Mathematics, Oddities | Tagged , , , , , | 7 Comments

Quotable #17: Fraction

“A man is like a fraction whose numerator is what he is and whose denominator is what he thinks of himself. The larger the denominator, the smaller the fraction.” — Leo Tolstoy

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Magic 1089 And Magic Squares

The 1089 Trick Those who like to read books about puzzles or recreational mathematics would likely be familiar with the trick that involves the number 1089. The trick begins by asking someone to select a three-digit number that has a different … Continue reading

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Curious Number Patterns #3

Palindrome and Prime 93639 (a palindromic number) plus the sum of its prime factors is equal to 93683, which is a prime number: 93683 = 93639 + 3 + 7 + 7 + 7 + 7 + 13 Interestingly, there … Continue reading

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Can Eight 8’s Produce 1000?

My previous post “Can Two 2’s Produce 5?” showed a way to produce 5 using only two 2’s and any mathematical operations. Now, here’s another similar puzzle. Using eight 8’s and any mathematical operations and symbols, can you make them … Continue reading

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Curious Number Patterns #2

Interesting Patterns 777² = 603729 (603 + 729)/2 = 666 Doing a similar procedure for 666, 666² = 443556 except that we don’t divide the sum of the two 3-digit groups by 2. 443 + 556 = 999 Same procedure … Continue reading

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Ambiguous Profit

It’s been quite a while isn’t  it? In my last post, I said that I’d be gone for a week but it turned out to be almost four months. During the last few months, I had to deal with some … Continue reading

Posted in Mathematics, Puzzles | Tagged , , , | 45 Comments