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The lcm of 10 and 30 is 30.

- Find the prime factorization of 10

10 = 2 × 5 - Find the prime factorization of 30

30 = 2 × 3 × 5 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 3 × 5 - LCM =
**30**

Find least common multiple (lcm) of: 20 & 60 5 & 15 30 & 90 50 & 150 2 & 6 70 & 210 20 & 30 10 & 60 30 & 30 10 & 90 50 & 30 10 & 150 70 & 30 10 & 210

Enter two numbers separate by comma. To find lcm of more than two numbers, click here.

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