Solutions by everydaycalculation.com

The LCM of 45 and 49 is 2205.

- Find the prime factorization of 45

45 = 3 × 3 × 5 - Find the prime factorization of 49

49 = 7 × 7 - Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 3 × 3 × 5 × 7 × 7 - LCM =
**2205**

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Find least common multiple (LCM) of: 90 & 98 135 & 147 225 & 245 315 & 343 90 & 49 45 & 98 135 & 49 45 & 147 225 & 49 45 & 245 315 & 49 45 & 343

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