In mathematics, a double Mersenne number is a Mersenne number of the form
where p is a Mersenne prime exponent.
Read more about Double Mersenne Number: The Smallest Double Mersenne Numbers, Double Mersenne Primes, The Catalan–Mersenne Number Conjecture, In Popular Culture
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“... the next war will be a war in which people not armies will suffer, and our boasted, hard-earned civilization will do us no good. Cannot the women rise to this great opportunity and work now, and not have the double horror, if another war comes, of losing their loved ones, and knowing that they lifted no finger when they might have worked hard?”
—Eleanor Roosevelt (1884–1962)
“... in every State there are more women who can read and write than the whole number of illiterate male voters; more white women who can read and write than all Negro voters; more American women who can read and write than all foreign voters.”
—National Woman Suffrage Association. As quoted in History of Woman Suffrage, vol. 4, ch. 13, by Susan B. Anthony and Ida Husted Harper (1902)