Question

1. If 247xy is divisible by 3,7 and 11. Then find the value of x − =?​

Answer 1

Answer:

pls put me as brainilist pls

Explanation:

which class

which subject

Answer 2

Concept:

Prime factorisation is a method to find the prime factors of a given number, say a composite number. These factors are nothing but the prime numbers. A prime number is a number which has only two factors, i.e. 1 and the number itself.

For example, 2 is a prime number which has two factors, 2 × 1. Whereas a composite number has more than two factors present in it. For example, 4 has three factors such as 1 × 2 × 2.

Given:

247xy is divisible by 3,7 and 11

Find:

Find the value of x

Solution:

Factorisation of 247 = 13 x 19

So, 247xy=13 x 19 xy

But 247xy is divisible by 3, 7 and 11

So, x could be either 3,7,11,21,77,33 or be a multiple of  3,7,11,21,77,33

#SPJ3