1 find the hcf of the number by means of prime number a 52 and 78 b95 and 120

am suppose to use a square root please help me answer

a. Get the prime factorizations of 52 and 78:

52 = 2² • 13

78 = 2 • 3 • 13

Then the HCF/GCD of 52 and 78 is 2 • 13 = 26, because both 2 and 13 are common divisors of 52 and 78.

b. Do the same thing for 95 and 120:

95 = 5 • 19

120 = 2³ • 3 • 5

Then the HCF is 5.

english, cause i can’t you

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart