Question

Find the GCF of the numbers using prime factorizations.

4, 10
5, 11
6,8
14, 42
45, 63
60, 90
My sister is in sixth grade and is struggling

Answer 1

Answer:

GCF = 1

Explanation:

for the values 4, 5, 6, 8, 10, 11, 14, 42, 45, 60, 63, 90

Solution by Factorization:

The factors of 4 are: 1, 2, 4

The factors of 5 are: 1, 5

The factors of 6 are: 1, 2, 3, 6

The factors of 8 are: 1, 2, 4, 8

The factors of 10 are: 1, 2, 5, 10

The factors of 11 are: 1, 11

The factors of 14 are: 1, 2, 7, 14

The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42

The factors of 45 are: 1, 3, 5, 9, 15, 45

The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

The factors of 63 are: 1, 3, 7, 9, 21, 63

The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Then the greatest common factor is 1.