The first, smallest, and only odd prime gap is 1 between the only even prime number, 2, and the first odd prime, 3. All other prime gaps are even. There is only one pair of gaps between three consecutive odd natural numbers for which all are prime. These gaps are g2 and g3 between the primes 3, 5, and 7.
Girls usually start their periods between the ages of 10 and 16. Most girls start when they're around 12. As everyone develops at different rates, there's no right or wrong age for a girl to start. Your periods will start when your body is ready, and there's nothing you can do to make them start sooner or later. If you haven't started your periods by the time you're 16, visit your doctor for a check-up.
yes not only girls go through puberty speaking of girls and their hormones there is such thing as getting a period girls start their period when they are 10 or maybe sometimes start when they are in their teen years periods last 5 7 days a monthhe age of menarche her first period is about 2 years after the first signs of puberty girls are all different some hit puberty at a young age of 8 whereas some hit puberty at 15