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## What is the LCM of 1225 and 840?

The lcm of 1225 and 840 is 29400.

#### Steps to find LCM

1. Find the prime factorization of 1225
1225 = 5 × 5 × 7 × 7
2. Find the prime factorization of 840
840 = 2 × 2 × 2 × 3 × 5 × 7
3. Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2 × 2 × 2 × 3 × 5 × 5 × 7 × 7
4. LCM = 29400

#### LCM Calculator

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