15
Find the greatest number that will divide 390, 495 and 300 without leaving a remainder.
- A5
- B15
- C25
- D35
Answer not set
Discussion 1
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CCommunity
Lets factorize each one them
390 = 2 × 3 × 5 × 13
300 = 2 × 2 × 3 × 5 × 5
495 = 3 × 3 × 5 × 11
Hence we can see only two numbers common two all three are 3 × 5 = 15
∴ 15 is the greatest number that divides 390, 495 and 300 without leaving a remainder.
390 = 2 × 3 × 5 × 13
300 = 2 × 2 × 3 × 5 × 5
495 = 3 × 3 × 5 × 11
Hence we can see only two numbers common two all three are 3 × 5 = 15
∴ 15 is the greatest number that divides 390, 495 and 300 without leaving a remainder.