math

A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order.

(a) Find m - n;
(b) Express (m - n) as a product of its prime factors.

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  1. surely you know the primes and squares.
    So, write them in order to form large-ish numbers.
    Then subtract and factor

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