international system of numeration.
(a) 9990456
(b) 18950049
3. Express 38 as the sum of two odd primes.
4. Give three pairs of prime number whose difference is 2.

Answer :

answer:

(a) 9,990,456

(b) 18,950,049

(3) 31 as sum of 2 odd prime numbers is 31+7

(4) 3 pairs of prime number with difference 2 are (5,7) ; (11,13) ; (17,19)

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