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If 23457 a68 divisible by 9, then the l...

If `23457 a68` divisible by 9, then the lest value of a is _____

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PEARSON IIT JEE FOUNDATION-REAL NUMBERS AND LCM AND HCF -Test your concepts very short type
  1. Every recurring decimal is a number.

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  2. How many rational numbers exist between any two rational numbers ?

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  3. Is pi a rational or an irrational numbers?

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  4. Every rational number can be represented by some point on the number l...

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  5. What is the multiplicative inverse of a, where a ne 0 ?

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  6. Prime numbers differeing by 2 are called

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  7. If 23457 a68 divisible by 9, then the lest value of a is

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  8. If x is divisible by both 3 and 5 ,then x is divisible by 15. is this ...

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  9. Pairs of numbers of the form (6k-1) and (6k+1) are twin primes. Is thi...

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  10. If a//b,b//c then the GCD of a , b,c is

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  11. If 36 is exactly divisible by a, then the GCD of 36 and a is

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  12. The LCM of a and b is x. what is the LCM of ma and mb?

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  13. Let a and b be two numbers. Then axxb= (LCM of a and b) x().

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  14. What is the GCD of ma and mb, if the GCD of a and b is x ?

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  15. In the prime factorisation method of finding LCM, LCM is given by prod...

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  16. Let a and b two numbers p be their LCM and q be their GCD. Then q in t...

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  17. ("HCF of given fraction")/("LCM of given fractions") =(HCF " of num...

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  18. If x=a^2.b^3 , where a and b are prime factors of x, then numbers of f...

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  19. The units digit of the number 9^26 is

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  20. ("Divided -Remainder")/("Divisor")=

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