Question

LCM of 39, 52 65 is what?
LCM of 255, 340, 765, 425 is what?

Answer 1

Answer:

L.C.M. of 39, 52 and 65. So, the smallest number is 785, which when divided by 39, 52 and 65 leaves a remainder of 5 in each case

Step-by-step explanation:

LCM of 255, 340, 765, 425 is 15,300

Answer 2

Answer:

• L.C.M. of 39, 52 and 65 = 780
• L.C.M of 255, 340, 765, 425 =  15300.

Step-by-step explanation:

1) Prime factorization of 39 = 3  × 13

Prime factorization of 52 = 2  × 2  × 13

Prime factorization of 65 = 5 × 13

L.C.M. = 2 ×2 ×3  × 5 × 13

L.C.M. of 39, 52 and 65 = 780

2) Prime factorization of 255 = 3 × 5 × 17

Prime factorization of 340 = 2 × 2 × 5 × 17

Prime factorization of 765 = 3 × 3 × 5 × 17

Prime factorization of 425 = 5 × 5 × 17

L.C.M of 255, 340, 765, 425

= 2× 2 × 3× 3  × 5 × 5 × 17

= 4 × 9 × 25 × 17 = 15300.