Contact us
Choose a category below so we can get back to you as quickly as possible.
①當a=3k時,只有3滿足題意;②當a=3k+1時,a+14=3k+15=3(k+5),所以a+14不是質數;③當a=3k+2時,p+10=3k+12=3(k+4),所以a+10不是質數;綜上,a=3.答:數a是3.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.