Question

The prime number next to 70is math
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Answer 1

Answer:

Every 7th odd number divides by 7 - these numbers are 77 and 91 (77 = 7 × 11 and 91 = 7 × 13.) The next prime number is 11, but 97÷ 11 = 8 plus remainder 9, i.e. the quotient is smaller than 11. So there are no more prime number factors. The prime numbers between 70 and 100 are 71, 73, 79, 83, 89, 97.