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Q: What is the sum of prime numbers between 70 - 90?

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240

128

71 + 73 + 79 + 83 + 89 + 97 = 492

Two prime numbers, 61 and 67, are the only prime numbers between 60 and 70.

61 and 67 are the two prime numbers between 60 and 70.

The prime numbers between 55 and 70 are: 59, 61 and 67

The prime numbers between 70 and 80 are 71, 73 and 79They are: 71, 73 and 79

71, 73, and 79 are three prime numbers between 70 and 80.

There are two prime numbers between 60 and 70.

There are 3 prime numbers between 70 and 80: 71 73 79.

67 and 3

There are five ways to get a sum of 70 with two prime numbers: 3 + 67 = 70 11 + 59 = 70 17 + 53 = 70 23 + 47 = 70 29 + 41 = 70.

The three prime numbers between 70 and 80 are: 71, 73, 79

The prime numbers between 50 and 70 are: 53 59 61 67 Therefore, there are four prime numbers between 50 and 70.

The prime numbers in the range 51 - 70 are 53, 59, 61 and 67.

The prime numbers between 70 and 80 are 71, 73, and 79.

The prime numbers between 70 and 80 are 71, 73, and 79.

The prime numbers between 40 and 70 are 41, 43, 47, 53, 59, 61, and 67.

the prime numbers between 70 and 90 are 71, 73, 79, 83, and 89.

They are 71 and 73 which are both prime numbers

31 + 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 = 439

There are five prime numbers between 45 and 70: 47 53 59 61 67.

There is no simple answer because there is no known pattern for prime numbers. So the answer is to find all the primes below 70 and add them together. Sorry, but no short cut for this.

The numbers 53, 59, 61 and 67 are prime.

71, 73, and 79 are the only prime numbers between 70 and 80.

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