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Find the common factors of : 7,21 and 35...

Find the common factors of :
7,21 and 35.

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MBD-PLAYING WITH NUMBERS-EXERCISE
  1. Find the common factors of : 3 and 27.

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  2. Find the common factors of : 6,12 and 18.

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  3. Find the common factors of : 7,21 and 35.

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  4. Find first five common multiples of: 3 and 5.

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  5. Find first five common multiples of: 12 and 18.

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  6. Find first five common multiples of: 3 and 9.

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  7. Which of the following are co-prime numbers? 17 and 35.

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  8. Which of the following are co-prime numbers? 15 and 19.

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  9. Which of the following are co-prime numbers? 15 and 24.

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  10. Which of the following are co-prime numbers? 12 and 30.

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  11. Which of the following statements are true: If a number isdivisible by...

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  12. The difference of two distinct even numbers is an even number.

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  13. If a number is divisible by two odd numbers,it is divisible by their p...

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  14. If a number is a factor of each of the two given numbers it is also a ...

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  15. A number is divisible by 4 and 12.Is it necessary that it will be divi...

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  16. 6 is a factor of 12066 and 49320.Is 6 a factor of 49320 + 12066 and 49...

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  17. 11 divides 44 and 44 divides 396.Does 11 divide 396?

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  18. Write the prime factorisation of the following number : 52

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  19. Write the prime factorisation of the following number : 48

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  20. Write the prime factorisation of the following number : 84

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