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Q.

Is it true that the H.C.F. of 150, 140, and 210 using the prime factorization method is 10?


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a

True

b

False  

answer is A.

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Detailed Solution

We have been given the numbers 150, 140, and 210.
Prime factors of 150, 140 and 210,
150=2×5×5×3   140=2×2×5×7   210=2×3×5×7   Common factors in 150, 140, and 210 are 2 and 5.
The HCF of 150, 140, and 210,
2×5=10  
Therefore, the HCF is 10.
Hence, option 1 is correct, and the given statement is true.
 
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