Blog Tag Trignometry

Testing Divisibility with the help of Factors

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Question: Find the HCF of 140, 170 and 30 from their prime factors.

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Question: Find the HCF of 45, 405 and 28835.

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Question: Find the HCF of 12, 24 and 120 by Short Division Method.

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Question: Find the HCF of 175, 1225 and 3675 by short Division Method

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Question: Find the HCF of 630 and 1260 by short Division Method.

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Question: Find the LCM of 48, 56 and 72 by Prime Factorisation.

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Question: Find the LCM of 105, 126 and 147 by prime factorisation.

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Question: Find the LCM of 28, 42 and 80 by prime factorization.

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Question: Find the LCM of 75, 125 and 225 by short Division Method

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Question: Find the LCM of 290, 360 and 480 by short Division Method

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Relationship between HCF and LCM

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Question: How many paper plates would be required to make complete group of 20, 24 and 30?

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Question: What number should be subtracted from 65 to make it divisible by 6, 12 and 15?

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Question: What number should be subtracted from 423 to make it a multiple of 12, 14 and 15?

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