Q- Which of the following statements is incorrect A- 28 is a perfect number B- The factors of - Maths - Playing with Numbers

Question

Q- Which of the following statements is incorrect
?
A- 28 is a perfect number
B- The factors of any positive integers are infinite
C- If a number is divisible by 4 and 15, it will be divisible by
20
Here, Option - b is ans But why option c is correct here as per
which concept Plz help

Anand Kumar Pandey · Accepted Answer

Q- Which of the following statements is incorrect ? A- 28 is a perfect number B- The factors of any positive integers are infinite. C- If a number is divisible by 4 and 15, it will be divisible by 20. Here, Option - b is ans. But why option c is correct here as per which concept. Plz help

Q- Which of the following statements is incorrect ?
A- 28 is a perfect number
B- The factors of any positive integers are infinite.
C- If a number is divisible by 4 and 15, it will be divisible by 20.
Here, Option - b is ans. But why option c is correct here as per which concept. Plz help