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If a and b are positive integers such th...

If a and b are positive integers such that `a=x^3y^2`and `b=xy^3`,where x,y are prime number then HCF (a,b) is

A

xy

B

`xy^2`

C

`x^2y^2`

D

`x^3y^3`

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R G PUBLICATION-REAL NUMBERS-EXERCISE
  1. The co-prime pair is

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  2. If p and q are positive integers such that p=ab^2 and q=a^3b,where a,b...

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  3. If a and b are positive integers such that a=x^3y^2and b=xy^3,where x,...

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  4. If x=2^3xx3xx5^2,y=2^2xx3^3 the HCF (x,y) is a)18 b)102 c)12 d) 2...

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  5. If a=2^2xx3^3xx5^4 and b=2^3xx3^2xx5 then HCF (a,b) is a)90 b)180 ...

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  6. LCM of (2^3xx3xx5) and (2^4xx5xx7) is

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  7. HCF of (2^3xx3^2xx5),(2^2xx3^3xx5^2) and (2^4xx3xx5^3xx7) is a)60 b)...

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  8. Given that HCF (2520,6600)=40 and LCM(2520,6600)=252xxx then the value...

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  9. Given that HCF (26,91)=13 then LCM of (26,91) is a)182 b)282 c)192...

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  10. If HCF (26,169)=13,then LCM(26,169) is a)13 b)26 c)52 d)338

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  11. If a=2^3xx3,b=2xx3,c=3^nxx5 and.LCM(a,b,c)=2^3xx3^2xx5 then n= a)1 b...

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  12. For some positive integer m,every positive even integer is of the form...

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  13. For some positive integer n,every positive odd integer is of the form

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  14. Euclid's division Lemma states that if a and b are any two positive in...

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  15. (n^2-1)is divisible by 8,if n is

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  16. If n is a natural number ,then 9^(2n)-4^(2n) is always divisible by ...

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  17. If n is a any natural number ,then 6^n-5^n is always end with

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  18. The LCM and HCF of two rational numbers are equal,then the numbers mus...

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  19. If P1 and P2 are two odd prime numbers such that P1>P2 then P1^2-P2^2 ...

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  20. The demical expansion of 33/(2^2xx5) will terminate after

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