Question

Find the HCF and LCM of 15 and 60

Answer 1

• Find the prime factorization of 15 = 3 × 5
• Find the prime factorization of 60 = 2 × 2 × 3 × 5

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM= 2 × 2 × 3 × 5= 60

• Factors of 15: 1, 3, 5, and 15.
• Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.

The greatest factor on the two lists that they have in common is the HCF of 15 and 60. Therefore, the HCF of 15 and 60 is 15.

LCM:60

HCF:15

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Answer 2

Answer:

Your answer is in the attachment ⏫

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