Eric Nicholas K's answer to Qyara Qistyna's Secondary 1 Maths Singapore question.
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For LCM, we take the highest powers of each prime number and then multiply them.
The highest power of 2 in this case os 3, the highest power of 3 is 1 and the highest power of 7 is 3, so the LCM is 8232.
For the perfect square, we need to 'distribute' the contents of the 1029 into two identical brackets. We see that the second bracket needs an extra 3 and an extra 7 to complete the identical brackets, so k must contain a 3 and a 7.
The highest power of 2 in this case os 3, the highest power of 3 is 1 and the highest power of 7 is 3, so the LCM is 8232.
For the perfect square, we need to 'distribute' the contents of the 1029 into two identical brackets. We see that the second bracket needs an extra 3 and an extra 7 to complete the identical brackets, so k must contain a 3 and a 7.
Date Posted:
5 years ago
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