Question

find the rod with the greatest length measuring exactly 42m 49m 63m​

Answer 1

Step-by-step explanation:

Prime factorization of 42 = 2 × 3 × 7. Prime factorization of 49 = 7 × 7. Prime factorization of 63 = 3 × 3 × 7. Thus, the length of the longest rod which can measure 42 m, 49 m and 63 m exactly is 7 m.

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Answer 2

Answer:

Prime factorization of 42 = 2 × 3 × 7. Prime factorization of 49 = 7 × 7. Prime factorization of 63 = 3 × 3 × 7. Thus, the length of the longest rod which can measure 42 m, 49 m and 63 m exactly is 7 m.