Question

According to Fundamental Theorem of Arithmetic 13915 is a
a) Composite number
b) Prime number
c) Neither prime nor composite
d) Even number​

Answer 1

a) composite number

this is the correct one

Answer 2

Given :  13915

To Find :  number is

a) Composite number

b) Prime number

c) Neither prime nor composite

d) Even number​

Solution:

Composite number  has have atleast 3 factors

atleast one factor other than 1 and number itself

Prime number has exactly two factors

1 and number itself

Even number​ ends with 0 ,2  , 4 ,6 or 8

Numbers divisible by 2 are Even numbers

Neither prime nor composite natural number is 1

13915 = 1 * 13915

= 5 * 2783

2783 = 11 * 11 * 23

13915 = 5 * 11² * 23

Hence 13915 is  composite number

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