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Common multiples and divisors

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  • Find the greatest common divisor of 18 and 24.
    6
  • Today, both the soccer team and the basketball team had games. The soccer team plays every 3 days and the basketball team plays every 5 days. When will both teams have games on the same day again?
    In 15 days.
  • Tell me the greatest common divisor of 24 and 32 that is smaller than 8.
    4
  • Elsa and Pauli are filling buckets in their garden with water. Each time they fill a bucket, it becomes half full. Elsa fills every three buckets and Pauli fills every nine buckets. Which are the first two buckets to get full?
    The 9th and the 18th bucket.
  • What is the least common multiple of 6 and 8?
    24
  • Find the least common multiple of 8 and 12.
    24