Question

let p be the number of primes less than 100, and let Q be the number of primes less than 90. What is the value of P-Q?

Answer 1

The value of P - Q as described in the question above is; P -Q = 2.

According to the question;

• P = number of primes less than 100
• Q = number of primes less than 90

Since, we are required to determine what the value of P-Q is;

The value of P-Q is simply the number of primes between 90 and 100.

The prime numbers between 90 and 100 are; 91 and 97.

Therefore, P - Q = 2.

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