Friday

April 18, 2014

April 18, 2014

Posted by **marissa** on Monday, May 13, 2013 at 7:45pm.

14, the least common multiple is 168. If the 2 numbers are not 14 and 168, what is the sum?

- math -
**Reiny**, Monday, May 13, 2013 at 10:24pm1st number : 14a = 2(7)(a)

2nd number : 14b = 2(7)(b)

168 = 2(2)(2)(3)(7)

14ab = 8(3)(7)

ab = 12

could be:

a b

1 12

2 6

3 4

If a=1, b=12 , the 2 numbers are 14 and 168 , but we are told that's not it

if a = 2, b = 6, the 2 numbers are 28 84

check:

LCF of 28 and 84 would be 28

if a = 3, b = 4

**the two numbers are 42 and 56**

LCF = 14

42 = 2x3x7

56 = 2x2x2x7

LCM = 2x2x2x3x7 = 168 , YEAHH

so the sum of the two numbers is 42+56 = 98

- math -
**marissa**, Tuesday, May 14, 2013 at 12:49amthank you a bunch reiny

**Related Questions**

Greatest Common factors - I dont know these answers. Can you help me? Greatest ...

MATH 117 - What is the greatest common factor (HINT: It may help for you to show...

Math - If a is the greatest common factor of 72 and 48, and if b is the greatest...

math - What is the greatest common factor of 18, 30, and 45? I come up with 3 as...

Algebra - I need a step by step explanation of finding the GCF of (6ysquare -3y...

Math - list the common factors for each pair of numbers. Then find the greatest ...

math - 1. What is the greatest common factor of: 2x2x5x7x7 2x5x5x7x7 a. 2x5 b. ...

math - for numbers less than 40, list each pair of numbers that has a greatest ...

Math - Factor the greatest common factor from the polynomial. Assume any ...

Math - Factor the greatest common factor from the polynomial. Assume any ...