Numbers

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Across
  1. 2. Every composite number can be expressed as a ________ of prime numbers in a unique way.
  2. 4. Expressing a given number as a product of factors that are all prime numbers is called the prime ____________ of a number.
  3. 6. The Least Common Multiple of any two non-zero whole numbers is the smallest common _________ of both the numbers.
  4. 7. Two numbers having 1 as their only common factor is said to be ______.
  5. 8. Two numbers are said to be ________ numbers if the sum of the factors of one number (except the number itself) gives the other number.
  6. 9. A pair of prime numbers whose difference is 2 is called as ______ primes.
  7. 10. The product of two given numbers is ________ to the product of their HCF and LCM.
Down
  1. 1. The Highest Common Factor of any two non-zero whole numbers is the largest common _________ of both the numbers.
  2. 2. A natural number greater than 1, having only two factors namely 1 and the number itself, is called a __________ number.
  3. 3. A natural number having more than two factors is called a __________ number.
  4. 5. If three successive prime numbers differ by 2, then the prime numbers form a prime _________.