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Find the smallest number, having four di...

Find the smallest number, having four different prime factors?

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NCERT TELUGU-PLAYING WITH NUMBERA-EXERCISE
  1. You know 431 is a prime number, can you find the other two prime numbe...

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  2. Express 96 as the sum of 3 prime numbers ?

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  3. Find the smallest number, having four different prime factors?

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  4. Find the smallest 3 digit number which when divided by 36, 42, 54 leav...

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  5. Verify whether 73548 is divisible by 4?

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  6. Verify whether 83568 is divisible by 11?

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  7. Write the factors 78?

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  8. Identify different co-primes between 50 and 70.

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  9. Find the prime factorisation of 72 by drawing a factor tree?

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  10. Find the HCF of 28, 42, 63 by prime factorisation method?

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  11. Find the HCF of 45, 60, 75 by continued division method.

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  12. Find LCM of the numbers 18, 24, 36 by prime factorisation method?

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  13. Find the LCM of the numbers 25, 30, 50 by the division method?

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  14. If the LCM and HCF of two numbers is 144 and 12. One of the number is ...

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  15. The product of two numbers is 2028. Their LCM is 156. Find the HCF.

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  16. Find the polyndrome number of 9 digits and check whether it is divisib...

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  17. Fill in the blanks, so that the number is divisible by 6 is 532.

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  18. Fill in the blanks, so that the number is divisible by 6 is 943.

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  19. Is 98793 is divisible by 9. Vefify without actual division.

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  20. Are all the numbers divisible by 5 are divisible by 10?

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