How many non-prime factors are in the number `N =2^5 xx 3^7 xx 9^2 xx 11^4 xx 13^3`.

How many non-prime factors are in the number N=2^(5)xx3^(7)xx9^(2)xx11^(4)xx13^(3)

Find the total number of prime factors in 2^(17) xx 6^(31) xx 7^(5) xx 10^(11) xx 11^(10) xx (323)^(23) .

Find the LCM of 2 xx 3 xx 5 xx 7 and 3 xx 5 xx 7 xx 11

Find the LCM of 2 xx 3 xx 5 xx 7 and 3 xx 5 xx 7 xx 11

Find the unit digit of 3^6 xx 4^7 xx 6^3 xx 7^4 xx 8^2 xx 9^5 .

Find the sum 5 xx 7 + 9 xx 11 + 11 xx 3 + ... upto n terms.

In which of the following expressions, prime factorization has been done? (i) 24=2\ xx\ 3\ xx\ 4 (ii) 56=1\ xx\ 7\ xx\ 2\ xx\ 2\ xx\ 2 (iii) 70=2\ xx\ 5\ xx\ 7\ (iv) 54=2\ xx\ 3\ xx\ 9

Find the HCF of 2 xx 3^3 xx 5^2 xx 7^2 and 3 xx 5^2 xx 7 xx 11^2