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What do 15 and 5 both go into?
15 and 5 both go into every multiple of 15 .
What is the LCF of 3 and 5?
The LCF, or Lowest Common Factor, of 3 and 5 is 15. This is because 15 is the smallest number that both 3 and 5 can divide into evenly. In other words, 15 is the smallest multiple that is common to both 3 and 5.
What number is a multiple of 5 divisible by 3 but greater than 495 and less than 525?
510. To be divisible by 3, it must be a multiple of 3. Thus the required number is a multiple of both 3 and 5, which will be a multiple of their lcm: lcm(3, 5) = 15. → 495 ÷ 15 = 33 → first multiple of 15 greater than 495 is 15 x 34 = 510 → 525 ÷ 15 = 35 → last multiple of 5 less than 525 is 15 x 34 x 510 → number required is 510.
What is a number that is a multiple of 5 a multiple of 3 that is less than 50?
15, 30, 45
Is 200 a multiple of 15?
No.15 = 3 x 5So for 200 to be a multiple of 15, it must be a multiple of both 3 and 5:2 + 0 + 0 = 2 which is not a multiple of 3 so 200 is not a multiple of 3.200 ends in 0, so it is a multiple of 5.Thus 200 is a multiple of 5, but not a multiple of 3; so it is not a multiple of 15.
