find the lcm of 21 and 75.
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Answer:
525
Step-by-step explanation:
Find the prime factorization of 21
21 = 3 × 7
Find the prime factorization of 75
75 = 3 × 5 × 5
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3 × 5 × 5 × 7
LCM = 525
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