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EXERCISE - 1.2whether1. Express each of the following numbers as a product of its prime factors.(i) 140(ii) 156(iii) 3825(iv) 5005(v) 742985. Thisit is not2. Find the LCM and HCF of the following integers by the prime factorization methpresent(i) 12, 15 and 21(ii) 17, 23, and 29(iii) 8, 9 and 25zero.(iv) 72 and 108(v) 306 and 657LCMd. Let3. Check whether 6" can end with the digit 0 for any natural number n.4. Explain why 7 x 11 x 13+13 and 7 x 6 x 5 x 4 x 3 x 2 x 1 +5 are connumbers.5. How will you show that (17 x 11 x 2) + (17 x 11 x 5) is a compositeExplain.6. Which digit would occupy the units place of 6l.eachtheNow, let us use the Fundamental Theorem of Arithmetic to explore real numbe |
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