Python Program To Print Numbers From 1 to N Using For Loop

Python Program to find Prime Number using For Loop

Sum of prime numbers in python using for loop

Python Program To Print Numbers From 1 to N Using While Loop

```
# Python Program to print n prime number using for loop
Number = int(input(" Please Enter any Number: "))
print("Prime numbers between", 1, "and", Number, "are:")
for num in range(1, Number + 1):
# all prime numbers are greater than 1
if num > 1:
for i in range(2, num):
if (num % i) == 0:
break
else:
print(num)
```

**Output**

```
Please Enter any Number: 25
Prime numbers between 1 and 25 are:
2 3 5 7 11 13 17 19 23
```

```
# Python Program to Check A given Number is Prime Or Not
Num = int(input(" Please Enter any Number: "))
count = 0
for i in range(2, (Num//2 + 1)):
if(Num % i == 0):
count = count + 1
break
if (count == 0 and Num != 1):
print(" %d is a Prime Number" %Num)
else:
print(" %d is not a Prime Number" %Num)
```

**Output**

```
Please Enter any Number: 50
50 is not a Prime Number
```

```
# Python Program to print n prime number using for loop
max = int(input("Find sum of prime numbers upto : "))
sum = 0
for num in range(2, max + 1):
i = 2
for i in range(2, num):
if (int(num % i) == 0):
i = num
break;
#If the number is prime then add it.
if i is not num:
sum += num
print("\nSum of all prime numbers upto", max, ":", sum)
```

**Output**

```
Find sum of prime numbers upto : 25
Sum of all prime numbers upto 25 : 98
```

```
# Python Program to print Prime Numbers from 1 to N
max = int(input(" Please Enter Any Number: "))
Number = 1
print("Prime numbers between", 1, "and", max, "are:")
while(Number <= max):
count = 0
i = 2
while(i <= Number//2):
if(Number % i == 0):
count = count + 1
break
i = i + 1
if (count == 0 and Number != 1):
print(" %d" %Number, end = ' ')
Number = Number + 1
```

**Output**

```
Please Enter Any Number: 15
Prime numbers between 1 and 15 are:
2 3 5 7 11 13
```

#python #programming

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