Question

The sum of the prime factors of 1155 is ____

Answer 1

Answer:

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2304

Step-by-step explanation:

There are overall 16 factors of 1155 among which 1155 is the biggest factor and 3, 5, 7, 11 are its prime factors. The sum of all factors of 1155 is 2304.

Answer 2

To Find :- The sum of the prime factors of 1155 ?

Solution :-

We know that,

• Number which have only two factors one and itself are called as prime numbers . Example :- 2, 3, 5, 7 etc .

So, Prime factors of 1155 are :-

→ 1155 ÷ 3 = 385

→ 385 ÷ 5 = 77

→ 77 ÷ 7 = 11

→ 11 ÷ 11 = 1

then,

→ Prime factors of 1155 are = 3, 5, 7 and 11 .

therefore,

→ Sum of the prime factors of 1155 = 3 + 5 + 7 + 11 = 26 (Ans.)

Hence, The sum of the prime factors of 1155 is 26 .

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