What is the LCM of 420 and 7840?
The LCM of 420 and 7840 is 23520.
Steps to find LCM
- Find the prime factorization of 420
420 = 2 × 2 × 3 × 5 × 7 - Find the prime factorization of 7840
7840 = 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 7 - LCM = 23520
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Find least common multiple (LCM) of: 210 & 3920 84 & 1568 60 & 1120 840 & 7840 1260 & 7840 2100 & 7840 2940 & 7840
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