Question

Check whether 5×3×11+11 and 5×7+7×3+3 are composite number

Answer 1

Answer:

5*3*11+11=176=Not Composite Number

5*7+7*3+3=59=Not Composite Number

Step-by-step explanation:

Composite number having more than two factors are known as composite number.

Answer 2

Answer:

( 5 × 3 × 11 + 11 ) is  a  composite number .

( 5 × 7 + 7 × 3 + 3 ) is a not composite numbe

Step-by-step explanation:

First we should know what is composite number :

Composite numbers are those number which can be expressed in the form of prime factorization and that  factorization should be unique.

Some prime numbers are as

2, 3, 5, 7, 11, 13, 17.........

Our question is to check whether 5×3×11+11 and 5×7+7×3+3 are composite number or not.

1.

5 × 3 × 11 + 11

Take 11 as common

11 ( 5 × 3 + 1 )

11 ( 15 + 1 )

11 ( 16 )

Factors are as 11 × 2 × 2 × 2  .

Hence  number ( 5 × 3 × 11 + 11 ) is a composite number .

2.

5 × 7 + 7 × 3 + 3

35 + 21 + 3

59

Factors is only self 59 and 1.

Hence  ( 5 × 7 + 7 × 3 + 3 ) is not a composite number