Prime Numbers

# Hello World program in Python

n=152
a=1
p=[]
while (a<n):
    a+=1
    if a==2 or a==3:
        p.append(a)
    for x in range(a):
        if x<2:
            x+=2
        if (a%x==0):
            flag=False
            print (a,x,'frueas')
            break
        else:
            flag=True
            print (a,x,'talse')
            
    if flag==True:
        p.append(a)
        print(a)
print (p)