Common factors of 420, 735, and 945 are: 1, 3, 5, 7, 15, 21, 35, and 105.
105. 1050 = 2 x 3 x 52 x 7 735 = 3 x 5 x 72 hcf = 3 x 5 x 7 = 105
Obtain the prime factors of both numbers. 450 = 2 x 3 x 3 x 5 x 5 735 = 3 x 5 x 7 x 7 The factors common to both numbers are 3 and 5. The GCF is 3 x 5 = 15
105, 210, 315, 420, 525, 630, 735, 840, 945 +105 . . .
LCM(3, 27, 35) = 945
105
HCF of 735 and 1050 is 105.
Common factors of 420, 735, and 945 are: 1, 3, 5, 7, 15, 21, 35, and 105.
105
HCF(735, 2625) = 105
It is: 35
The GCF is 35.
The GCF is 105.
The GCF is 105.
HCF(735, 756) = 21 It can save you a lot of time if you use the fact that for any integers A and B, HCF(A, B) = HCF(A, B-A) That soon gives you small numbers to factorise.
105, 210, 315, 420, 525, 630, 735, 840, 945 . . .
The GCF of 420, 735, and 945 is 105.The prime factorization of 420 is 2x2x3x5x7The prime factorization of 735 is 3x5x7x7The prime factorization of 945 is 3x3x3x5x7(1) List the prime factors of each number.(2) Multiply those factors all numbers in the set have in common. If there are no common prime factors, the GCF is 1. (Those factors are the ones in bold type.)As you can see the GCF is 3x5x7 or 105