一个自然数,如果除了1和它本身外没有别的因数,这样的数叫作质数(也叫素数),如2、3、5、7、11、13等都是质数。在这些质数中,只有2是唯一的偶数,利用2的这一特性,我们可以解答一些有趣的问题。【问题1】有两个质数,它们的和既是一个小于100的奇数,又是13的倍数。这两个质数是多少?【思路点睛】根据这两个质数的和是小于100的奇数,我们可以确 A natural number, if there is no other factor than 1 and itself, such numbers are called prime numbers (also known as prime numbers), such as 2,3,5,7,11,13 are prime numbers. Of these prime numbers, only 2 is the only even number. Using this 2 property, we can answer some interesting questions. [Problem 1] There are two prime numbers whose sum is both an odd number less than 100 and a multiple of 13. What are the two prime numbers? [Ideas dot eye] According to the sum of the two primes is an odd number less than 100, we can indeed