（a） Is 0 a prime number?Explain.

题目

（a） Is 0 a prime number?Explain.
（b) Is 1 a prime number?Explain.
请附上英语答案
A.因为质数是指有1和它本身两个约数得数,而0的约数只有1,So.
B.同上

答案

Neither 0 or 1 is a prime number. Nor are they composite numbers. Because prime and composite numbers are only defined for integers that are larger than 1.