Question

Please help me brothers and sisters pls tomorrow is my final exams pls help me ​

Answer 1

Finding HCF OR GCF of 27 and 390.

Find the prime factorization of 27

27 = 3 × 3 × 3

Find the prime factorization of 390

390 = 2 × 3 × 5 × 13

To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 3

Finding HCF OR GCF of

Find the prime factorization of 60

60 = 2 × 2 × 3 × 5

Find the prime factorization of 390

390 = 2 × 3 × 5 × 13

To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 3 × 5

GCF = 30

AS 30 is divisible by 3.

HENCE, THE HCF OF 60 , 27 , 390 IS 3.

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