Question

find the LCM
by prime Factorization 18,90,140​

Answer 1

Answer:

Here's your answer dear friend .

So the prime factors of

1. 18=3×3×2
2. 90=5×2×3×3
3. 140=7×2×5×2

Hope this will help you dear friend.

Answer 2

➸ Given:

• Numbers are 18,90 & 140

☣ To Find:

• LCM by Prime Factorisation.

╠ Solution:

$→\;{[18,90,140]}$

$→\;{2[9,45,70]}$

$→\;{2[9,45,35]}$

$→\;{5[9,9,7]}$

$→\;{3[3,3,7]}$

$→\;{3[1,1,7]}$

$→\;{[1,1,7]}$

$lcm = 2 \times 2 \times 5 \times 3 \times 3 \times 7 \\ lcm = {2}^{2} \times {3}^{2} \times 7 \times 5 \\ lcm = 1260$

LCM of 18,19 & 20

• $\Large\red{\bold{1260}}$

๛ LCM - ʟᴇᴀꜱᴛ ᴄᴏᴍᴍᴏɴ ᴍᴜʟᴛɪᴘʟᴇ

$\boxed{\tt{@MrMonarque}}$

Hope It Helps You ✌️