explain why 5×7×11+13×17 is a composite number.
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Answered by
45
Recall that prime numbers are the numbers which have two factors, i.e., 1 and the number itself. For example, 7 is a prime number, because it has only two factors, 1 and 7 (the number itself).
Composite number is a number having more than two factors.
5 × 7 × 11 + 13 × 17 = 606
606 is a composite number, since it is having more than two factors.
Factors of 606 ⇒ 1, 2, 3, 6, 101, 202, 303, 606.
As you can see, 606 is a composite number, since it is having more than two factors.
Hope this may help you.
Composite number is a number having more than two factors.
5 × 7 × 11 + 13 × 17 = 606
606 is a composite number, since it is having more than two factors.
Factors of 606 ⇒ 1, 2, 3, 6, 101, 202, 303, 606.
As you can see, 606 is a composite number, since it is having more than two factors.
Hope this may help you.
Answered by
15
Prime no contain only 2 factors that is 1 and the number itself . But as 5*7*11+13*17 equals to 606 which is not prime it is a composite no. In confidence that it will help you!!
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