Ch.2 : Factors and Multiples

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Across
  1. 2. __________________ is the only even prime number
  2. 3. triplets If three consecutive prime numbers differ by 2, they are called __________________
  3. 6. __________________is an exact divisor of a number.
  4. 7. __________________ numbers are numbers except 1 which have more than 2 factors.
Down
  1. 1. prime numbers Two numbers having 1 as a common factor are called __________________
  2. 2. primes If two prime numbers have a difference of 2, they are called __________________.
  3. 3. HCF × LCM = __________________ of two numbers.
  4. 4. Number for which sum of all of its factors is equal to twice the number is called __________________ number.
  5. 5. __________________ of any number is the product of the number and any natural number.
  6. 8. Numbers which end with 0, 2, 4, 6 or 8 are __________________ numbers.