News. The invention of the Polymerase Chain Reaction (PCR) radically changed biology. The technique was considered so important that the Nobel Prize was awarded to its inventor, Kary Mullis, in 1993.Thanks to this technique, very small samples of DNA (from as little as a single cell) can be analyzed.ews. The invention of the Polymerase Chain Reaction (PCR) radically changed biology. The technique was considered so important that the Nobel Prize was awarded to its inventor, Kary Mullis, in 1993.
The smallest prime number, according to primality as defined by modern mathematicians, is 2. To be prime, a number must be divisible only by itself and 1. All other numbers are known as composites.
Example:What is the lowest common multiple of 7 and 30? 7 is a prime number. The prime factors of 30 are 2 x 3 x 5. 7 and 30 have no prime factors in common. 7 x 30 = 210.The lowest common multiple of 7 and 30 is 210.Example:What is the lowest common multiple of 2 and 3? 2 is a prime number.xample:What is the lowest common multiple of 7 and 30? 7 is a prime number. The prime factors of 30 are 2 x 3 x 5. 7 and 30 have no prime factors in common. 7 x 30 = 210.The lowest common multiple of 7 and 30 is 210. Example:What is the lowest common multiple of 2 and 3? 2 is a prime number.