Question

Explain why 7x5x3x1+3x2is a compoist number number

Answer 1

Answer:

111

Step-by-step explanation:

7*5*3*1+3*2

35*3+6

105+6

111

Answer 2

Given number is,

7 × 5 × 3 × 1 + 3 × 2

Well, we know the distributive property.

a(b + c) = ab + ac

What about the converse?

ab + ac = a(b + c)

Then, from the given number, we can have,

7 × 5 × 3 × 1 + 3 × 2 = 3 (7 × 5 × 1 + 2)

Now the given number is expressed as product of two numbers among which are neither 1 nor the number itself. So the number is said to be composite.

Remember, prime numbers can only be expressed as product of 1 and the prime number itself.