Question
If ‘u’ represents the number of primes from 1 to 40,
and ‘v’ is the number of prime numbers between 41 and 70, calculate u × v.Solution
ATQ,
Prime numbers from 1 to 40 = u = 12
Prime numbers between 41 and 70: 41, 43, 47, 53, 59, 61, 67 → Total = v = 7
u × v = 12 × 7 = 84
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