54 + 55 + 56 = 165
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3, 5 and 11
five for starters, 165/5 = 33. 3 x 11 = 33. so 3, 5 and 11.
The prime factorization of 165 is 3 x 5 x 11.
The prime factors of 165 are 3, 5, and 11. To find the prime factors of 165, we start by dividing 165 by the smallest prime number, which is 3. This gives us 55. Then, we continue dividing by prime numbers until we can no longer divide evenly, resulting in the prime factors of 3, 5, and 11.
The Highest Common Factor (HCF) of 165, 195, and 285 is the largest number that divides all three numbers evenly. To find the HCF, we first factorize each number: 165 = 3 x 5 x 11, 195 = 3 x 5 x 13, and 285 = 3 x 5 x 19. Then, we identify the common factors among the three numbers, which are 3 and 5. Therefore, the HCF of 165, 195, and 285 is 15 (3 x 5).