Class10 Maths Ex1.1 | Real Numbers| NCERT New syllabus,Class 10, chapter1#lcmandhcf #hcf #10th

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#realnumbers #exercise1.1#product of its primefactorof140,156 ,3825,5005,7429#140 #156 #3825 #5005 #7429 #naveenamaam#hcfandlcm
#hcfandlcmof26and91
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#lcmandhcfof12,15 and 21
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#lcmandhcf of 8,9 and 25
4.Given that HCF (306,657)=9,find LCM(306,657)
5.Check whether 6^n can end with the digit 0 for any natural numbers.
6. Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5are composite numbers.
7. There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field,while Ravi takes 12 minutes for the same. suppose they both start at the same point and at the same time,and go in the same direction. After how many minutes will they meet again at the starting point?

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