1, 3, 7 and 21
5 and 21
1. The two numbers are coprime.
1. The two numbers are coprime.
The numbers 1 and 3.
The number 7. 7 goes into 21 3 times; 7 goes into 49 7 times.
5 and 21
1. The two numbers are coprime.
1. The two numbers are coprime.
The numbers that go into 21 evenly are 1, 3, 7, 21.
The numbers 1 and 3.
The HCF of the given numbers is 1
The number 7. 7 goes into 21 3 times; 7 goes into 49 7 times.
1. The two numbers are coprime.
1, 3, 7, 9, 21, 63.
Factors of 21... 1,3,7,21 Factors of 76... 1,2,4,19,38,76 Common factors to both numbers... 1
1 and 7 will go into both numbers evenly leaving no remainders
1 x 147, 3 x 49, 7 x 21.