Question

Find the least common multiple using GCF of 7 and 35.

A. 700
B. 245
C. 105
D. 35
E. 70

Answer 1

The LCM of 7 and 35 would be 35
(7x5= 35)
(35x1= 35)
35 is the least that the numbers can go

Answer 2

Answer:35

Explanation:

• Step 1: List a few multiples of 7 (7, 14, 21, 28, 35, 42, . . . ) and 35 (35, 70, 105, 140, 175, 210, . . . . )
• Step 2: The common multiples from the multiples of 7 and 35 are 35, 70, . . .
• Step 3: The smallest common multiple of 7 and 35 is 35.
• ∴ The least common multiple of 7 and 35 = 35.