- Is 1 Prime, and Does It Matter? (mathenchant.wordpress.com)
If you ask a person on the street whether 1 is a prime number, they’ll probably pause, try to remember what they were taught, and say “no” (or “yes” or “I don’t remember”). Or maybe they’ll cross the street in a hurry. On the other hand, if you ask a mathematician, there’s a good chance they’ll say “That’s an excellent question” or “It’s kind of an interesting story…”
- I was conceived around this time.
A full-term pregnancy lasts about 40 weeks (280 days), but conception typically occurs about 38 weeks (266 days) before birth, since pregnancy is counted from the first day of the last menstrual period. \ If you were born on April 14, 1974, your conception date was likely around July 22, 1973. However, this could vary by a week or so depending on individual factors.
- Say the prime (saytheprime.com)
We’re attempting to get a collection of humans to say every digit of the newly-discovered (and currently largest-known prime number) Mersenne prime M136279841, and hope to achieve this before another larger prime is discovered.
- Prime number (Wikipedia)
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. However, 4 is composite because it is a product (2 × 2) in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorized as a product of primes that is unique up to their order.