Question

Write the common factors of 20 and 25​

Answer 1

Answer:

The common factors of 20 and 25 are 1 and 5.

List of positive integer factors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10

Factors of 25

List of positive integer factors of 25 that divides 20 without a remainder.

1, 5

Greatest Common Factor

We found the factors and prime factorization of 20 and 25. The biggest common factor number is the GCF number.

So the greatest common factor 20 and 25 is 5.

Answer 2

Solution :-

We know that,

• A common factor is a number that can divide two or more numbers, without leaving a remainder .

So ,

→ 20 ÷ 1 = Remainder 0

→ 20 ÷ 2 = Remainder 0

→ 20 ÷ 4 = Remainder 0

→ 20 ÷ 5 = Remainder 0

→ 20 ÷ 10 = Remainder 0

→ 20 ÷ 20 = Remainder 0

then,

→ factors of 20 are = 1, 2, 4, 5, 10 and 20 .

similarly,

→ 25 ÷ 1 = Remainder 0

→ 25 ÷ 5 = Remainder 0

→ 25 ÷ 25 = Remainder 0

then,

→ factors of 25 are = 1, 5 and 25

therefore,

→ Common factors of 20 and 25 are = 1 and 5.

Also, GCF(greatest common factor) of 20 and 25 is 5 .

Learn more :-

let a and b positive integers such that 90 less than a+b less than 99 and 0.9 less than a/b less than 0.91. Find ab/46

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