The numbers 41, 43, 47, 53, 59, 61 and 67 are prime.
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To find the sum of prime numbers between 40 and 70, we first identify the prime numbers within this range: 41, 43, 47, 53, 59, 61, 67. Adding these prime numbers together, we get 41 + 43 + 47 + 53 + 59 + 61 + 67 = 371. Therefore, the sum of the prime numbers between 40 and 70 is 371.
The prime numbers between 55 and 70 are: 59, 61 and 67
61 and 67 are the two prime numbers between 60 and 70.
There are two prime numbers between 60 and 70.
The prime numbers between 50 and 70 are: 53 59 61 67 Therefore, there are four prime numbers between 50 and 70.