Lowest common multiple (LCM)
Find the lowest common multiple of two numbers: the smallest number that both divide into. Each number is the product of two small primes, so the numbers stay under 50.
The step-by-step working shows how the common multiple is found.
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What changes each time
- Numbers built from the primes 2, 3, 5 and 7
- Numbers from 4 to 49
- A new pair every time
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