Mathematics for IGCSE & O level - Number (Section 3 - No. 1)
What is the LCM of 84 and 180?
8
12
1260
1060
Explanation
The prime factorization of 84 is 2 x 2 x 3 x 7. The prime factorization of 180 is 2 x 2 x 3 x 3 x 5. The LCM is 2^2 * 3^2 * 5 * 7 = 1260.
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