Question

Find the LCM by prime factorisation methods 40,36,126​

Answer 1

2(40,36,126)

2(20,18,63)

3(10,6,21)

3(10,2,7)

2(5,1,7)

=2*2*3*3*2*5*7

=2520

Answer 2

2 40. 36. 126

3 20. 18. 63

3. 20. 6. 21

2 20. 2. 7

2 10. 1. 73

5 5. 1 7

7. 1. 1. 7

1. 1. 1

2✖️3✖️3✖️2✖️2✖️5✖️7

= 2520...

are the prime factors...