Question

what is the lcm of 28,36,45,60 in division method

Answer 1

2| 28,36,45,60
|________
2 | 14,18,45,30
|_________
3 | 7,9,45,15
|________
3 | 7,3,15,5
| ______
5 | 7,1,5,5
|______
7 | 7,1,1,1
|______
| 1,1,1,1
Thus the lcm of 28,36,45 and 60 is
= 2×2×3×3×5×7
= 1260

Answer 2

Answer:

LCM of 28,36,45,60 in division method is 1260.

Step-by-step explanation:

Given : Numbers 28, 36 ,45, 60.

To find : What is the LCM of the numbers in division method?

Solution :

Division method is dividing the term by the least prime number divisible by the number.

Now, The LCM of 28, 36 ,45, 60 is

2 |  28    36   45    60

2 | 14      18    45    30

3 |  7       9    45     15

3 |  7       3     15      5

5 |  7       1      5       5

7 |  7        1      1        1

  |  1        1      1        1

So, The LCM of 28, 36 ,45, 60 is

$LCM= 2\times2\times3\times3\times5\times7$

$LCM= 1260$

Therefore, LCM of 28,36,45,60 in division method is 1260.